Pharmacology Practice Test 44
Pharmacology NCLEX Practice Test
Pharmacology is a key topic within the NCLEX test plan, located under Nursing Science → Clinical Foundations → Pharmacology. This section details drug mechanisms, safe administration, and patient education across nursing specialties. Each test contains 50 questions designed to mirror the difficulty and variety of the real exam.
This is the 44th part of the Pharmacology series. To explore all practice tests under this topic, use the “Back to Main Topic” button at the end of the page.
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Pharmacology Practice Test 44
POLYCROL GEL is a group of what drug?
- Anti-malaria
- Anti-anaemic
- Antacid
- Anti-Hypertensive Drug
Explanation: Answer reason: Polycrol gel is a combination antacid preparation (commonly aluminum and magnesium salts with an antiflatulent like simethicone) used to neutralize gastric acid and relieve dyspepsia/heartburn. Its primary therapeutic class is gastrointestinal antacid rather than antimicrobial, hematinic, or cardiovascular therapy. The other options do not match the standard indications or formulation of Polycrol gel. Category reason: This item asks to identify the drug class of a named medication, which is a pharmacology classification question rather than a nursing-intervention or prioritization scenario.
A 68-year-old male with a history of MI is on dual antiplatelet therapy (aspirin + clopidogrel) but develops severe gastrointestinal bleeding. Question: What is the best next step?
- Discontinue both agents
- Switch to aspirin + proton pump inhibitor (PPI)
- Replace clopidogrel with ticagrelor
- Continue dual therapy with PPI support
Explanation: Answer reason: Severe gastrointestinal bleeding is a life-threatening adverse effect where immediate hemostasis and stabilization take priority over ischemic prevention. Antiplatelet drugs worsen bleeding by impairing platelet aggregation, so they are held acutely until bleeding is controlled and risk is reassessed. Adding a PPI may reduce future upper-GI bleeding risk but is not an adequate response to ongoing severe hemorrhage. Switching to another P2Y12 inhibitor does not address the immediate bleeding risk and may exacerbate it. Category reason: This question centers on medication management of antiplatelet therapy and adverse effect response (major bleeding) rather than nursing prioritization or bedside care actions, making it primarily Pharmacology.
The Primary Therapeutic Use Of Lovastatin
- Hypertension
- Diabetes
- Hypercholesterolemia
- Asthma
Explanation: Answer reason: Lovastatin is an HMG-CoA reductase inhibitor (statin) primarily used to lower LDL cholesterol and reduce total cholesterol, thereby decreasing atherosclerotic cardiovascular risk. It is not an antihypertensive, does not directly treat diabetes, and is not a bronchodilator or anti-inflammatory agent for asthma. Statins are commonly prescribed for dyslipidemia management alongside lifestyle modification. Monitoring for myopathy and liver enzyme elevation is part of safe use. Category reason: This question tests the indication/therapeutic use of a medication (lovastatin), which is core Pharmacology knowledge rather than a nursing care decision scenario.
All of the following are side effect of phenytoin, except?
- Ataxia
- Gum hypertrophy
- Hirsutism
- Hypoglycemia
Explanation: Answer reason: Phenytoin commonly causes dose-related CNS toxicity such as nystagmus, dizziness, and ataxia. It also has characteristic chronic adverse effects including gingival hyperplasia and hirsutism due to effects on connective tissue and hair follicles. Hypoglycemia is not a typical or well-known adverse effect of phenytoin; metabolic effects more classically associated with phenytoin include folate deficiency and vitamin D-related bone disease. Category reason: This is a medication adverse-effect identification question focused on phenytoin, which is core Pharmacology (drug effects and side effects) rather than nursing process or prioritization.
In following regarding BCG which statement is false-?
- BCG is the only widely used live bacterial vaccine
- Present day freeze dried vaccines are used
- Present day liquid (fresh) vaccine is more commonly used
- It should be stored on temperature below 10°c
Explanation: Answer reason: BCG is currently supplied and used predominantly as a freeze-dried (lyophilized) vaccine that is reconstituted before administration because this form is more stable. Fresh liquid preparations are less stable and therefore not preferred for routine programs. The other statements align with standard vaccine characteristics and handling principles for BCG, including being a live attenuated bacterial vaccine and requiring cold-chain storage. Category reason: This question tests properties and storage/handling of a vaccine (BCG), which is foundational medication/immunization knowledge rather than a nursing judgment scenario, fitting Pharmacology.
Which of the following drugs, used for emergency contraception, works primarily by delaying or inhibiting ovulation and does not disrupt an implanted pregnancy?
- Mifepristone
- Ulipristal Acetate
- Misoprostol
- Levonorgestrel
Explanation: Answer reason: It is a progestin emergency contraceptive whose main mechanism is suppression or delay of the LH surge, thereby preventing or delaying ovulation if taken before ovulation occurs. It is not effective after implantation has occurred and is not an abortifacient. In contrast, mifepristone (antiprogestin) and misoprostol (prostaglandin analog) are used in medication abortion regimens and act on an established pregnancy. Ulipristal acetate is also emergency contraception via ovulation delay, but the question’s classic description most directly matches levonorgestrel and distinguishes it from abortifacients. Category reason: This item tests drug mechanisms and clinical use distinctions among emergency contraception and abortion medications, which is primarily Pharmacology.
A 35-year-old woman is diagnosed with trichomoniasis after presenting with vaginal discharge and pruritus. She is prescribed a single 2-g dose of metronidazole. The patient mentions she has a wedding party to attend the next day where she plans to consume alcohol. Question: What advice should the patient receive regarding alcohol consumption?
- Alcohol is safe to consume while taking metronidazole.
- Avoid alcohol during treatment and for 1–2 days after completing the dose.
- Consume alcohol in moderation to minimize interaction.
- Switch to tinidazole to avoid interaction with alcohol.
Explanation: Answer reason: Metronidazole can cause a disulfiram-like reaction when combined with ethanol due to inhibited aldehyde metabolism, leading to flushing, nausea/vomiting, abdominal cramping, headache, and tachycardia/hypotension. Even with a single 2-g dose, clinically significant interaction risk persists as the drug and metabolites remain in the body. Standard counseling is to avoid alcohol during therapy and for at least 24–48 hours after the last dose to prevent this adverse reaction. The alternative nitroimidazole tinidazole has a similar interaction risk, so switching does not solve the problem. Category reason: This question tests medication counseling about a drug–alcohol interaction and adverse effect prevention for metronidazole, which is core Pharmacology knowledge rather than a nursing prioritization/intervention scenario.
Which of the following describes a drug's affinity?
- The maximum effect a drug can produce.
- The concentration of a drug required to produce 50% of its maximal effect.
- The strength of the binding between a drug and its receptor.
- The ability of a drug to produce a therapeutic effect.
Explanation: Answer reason: Affinity refers to how tightly a drug binds to its receptor, typically reflected by binding constants (e.g., Kd). This is distinct from efficacy, which is the ability to produce a maximal biological response once bound. Option (a) describes efficacy (Emax), while option (b) describes potency (EC50). Option (d) is nonspecific and relates broadly to clinical effectiveness rather than receptor binding. Category reason: This item tests a core pharmacodynamics definition (affinity vs potency vs efficacy), which is foundational drug mechanism knowledge in Pharmacology.
Anticipatory nausea and vomiting occurs
- One week after chemotherapy
- Before chemotherapy administration
- During chemotherapy administration
- With in the first few hours after chemotherapy
Explanation: Answer reason: This is a conditioned response that develops after prior chemotherapy-related nausea/vomiting, where sights, smells, or anxiety associated with the treatment setting trigger symptoms. It typically occurs prior to receiving the next cycle, rather than during or after drug administration. Management often includes anxiety-reducing strategies and agents such as benzodiazepines in addition to standard antiemetics. Category reason: This question tests knowledge of chemotherapy-related emesis timing and classification, which is part of medication effects and supportive care in Pharmacology.
What is the preferred method of access for epinephrine administration during cardiac arrest in most patients?
- Intraosseous
- Endotracheal
- Central intravenous
- Peripheral intravenous
Explanation: Answer reason: IV access is the first-line route for medication delivery during adult cardiac arrest because it is rapid, widely available, and provides reliable systemic delivery when established quickly. Peripheral IV is typically attempted first while CPR continues, with IO access used if IV cannot be obtained promptly. Endotracheal delivery is not preferred due to unpredictable absorption and dosing, and central venous access is not routinely preferred because it can delay resuscitation and increase procedural risk. Category reason: This item tests knowledge of the standard route of administration for a resuscitation medication (epinephrine) during cardiac arrest, which is primarily a pharmacology/medication delivery concept rather than a nursing prioritization scenario.
__________is exempt from being dispensed in child-resistant container?
- Atorvastatin
- Isosorbide dinitrate 40mg
- Naproxen
- Sodium fluoride
Explanation: Answer reason: Certain drugs are federally exempt from child-resistant packaging requirements because moisture-proof or special packaging is needed to maintain stability and potency. Isosorbide dinitrate in specific strengths/forms is a classic example on the Poison Prevention Packaging Act exemption list due to its sensitivity and the need for tightly sealed packaging. The other options listed are not standard PPPA exemptions and are generally dispensed in child-resistant containers unless the patient/provider requests otherwise. Category reason: This tests knowledge of medication dispensing/packaging regulations tied to specific drugs, which is primarily a pharmacology/medication-related foundational science topic rather than a nursing care decision.
Which of the following auxiliary labels would be appropriate for a suspension?
- For ears only
- For external use only
- For eyes only
- Shake well
Explanation: Answer reason: Suspensions contain insoluble drug particles dispersed in a liquid vehicle that settle over time due to gravity. Agitating the container redistributes the particles to ensure the dose drawn up contains the intended concentration. Without mixing, early doses may be under-dosed and later doses over-dosed, risking treatment failure or toxicity. The other labels describe routes or restrictions of use rather than a key handling requirement specific to suspensions. Category reason: This item tests knowledge of medication formulations and proper administration/labeling requirements, which is a foundational pharmacology concept rather than a patient-care judgment scenario.
An amber unit-dose blister pack is used for ____________and____________?
- Creams and ointments
- Oral liquids and suspensions
- Suppositories and transdermal gels
- Tablets and capsules
Explanation: Answer reason: Amber unit-dose blister packs are designed to protect solid oral dosage forms from light and moisture while keeping each dose individually sealed to maintain stability and reduce contamination. Creams/ointments and oral liquids are typically packaged in tubes or bottles due to their consistency and dispensing needs. Suppositories and transdermal gels generally use different packaging (e.g., foil strips or sachets) tailored to those dosage forms. Category reason: This question tests knowledge of medication dosage forms and appropriate packaging for drug stability and administration, which is primarily Pharmacology rather than a nursing judgment/prioritization scenario.
The most commonly observed platelet dysfunction encountered in surgical patients is due to?
- Hemophilia A.
- Factor V deficiency.
- Aspirin.
- Heparin.
- Vitamin K deficiency.
Explanation: Answer reason: Aspirin irreversibly inhibits cyclooxygenase-1 in platelets, blocking thromboxane A2 formation and impairing platelet aggregation for the lifespan of the platelet (about 7–10 days). Because aspirin use is very common, it is a frequent cause of perioperative platelet dysfunction and bleeding tendency. In contrast, hemophilia A and factor V deficiency are coagulation factor disorders (not platelet dysfunction), heparin primarily affects the coagulation cascade via antithrombin, and vitamin K deficiency reduces vitamin K–dependent clotting factors rather than platelet function. Category reason: This question tests knowledge of a drug’s mechanism and its effect on platelet function and perioperative bleeding risk, which is primarily Pharmacology rather than nursing decision-making.
Hematoporphyrin derivative (HPD) is used in?
- Radiotherapy.
- Chemotherapy.
- Gene therapy.
- Photochemotherapy.
- None of the above.
Explanation: Answer reason: Hematoporphyrin derivative is a photosensitizing agent used in photodynamic therapy, where it accumulates in target tissues and is then activated by specific wavelengths of light. Light activation generates reactive oxygen species that cause localized cellular injury and tumor destruction. This mechanism aligns with photo(chemo)therapy rather than ionizing radiation, cytotoxic chemotherapy, or gene-based treatments. Category reason: This question tests knowledge of a specific therapeutic agent and its mechanism-based clinical use, which is primarily Pharmacology rather than nursing care prioritization or interventions.
A 67-year-old client has tested positive for influenza A. The client also has asthma. Which drug would the nurse recommend be avoided in this client?
- Ribavirin
- Zanamivir
- Oseltamivir
- Amantadine
Explanation: Answer reason: Inhaled neuraminidase inhibitors can precipitate bronchospasm, so they are not recommended in patients with reactive airway disease such as asthma or COPD. This risk is specific to the inhaled route and is clinically important even when influenza treatment is indicated. Oral neuraminidase inhibition does not carry the same bronchospasm concern. Category reason: This question tests knowledge of antiviral drug contraindications and adverse effects (inhaled antivirals causing bronchospasm in asthma), which is primarily Pharmacology.
Which first line medication would the nurse state is used to treat anaphylactic reactions?
- Epinephrine
- Norepinephrine
- Dexamethasone
- Diphenhydramine:
Explanation: Answer reason: It rapidly reverses life-threatening airway edema/bronchospasm via beta-2 effects and supports blood pressure via alpha-1 vasoconstriction, addressing the core pathophysiology of anaphylaxis. It is the first-line, time-critical medication given intramuscularly (typically into the mid-anterolateral thigh) and can be repeated if symptoms persist. Antihistamines and corticosteroids are adjuncts for symptom control and prevention of biphasic reactions but do not act quickly enough to replace initial therapy; norepinephrine is generally reserved for refractory shock requiring vasopressor support. Category reason: This item tests knowledge of the first-line drug and its therapeutic role in anaphylaxis, which is primarily pharmacologic management rather than nursing prioritization or a care scenario.
A mother complains that her child’s teeth have become yellow in color. With prolonged use, which medication may be responsible for the child’s condition?
- Tetracycline
- Promethazine
- Chloramphenicol
- Fluoroquinolones
Explanation: Answer reason: Tetracyclines chelate calcium and deposit in developing teeth and bones, leading to permanent tooth discoloration (yellow-brown/gray) and enamel hypoplasia when used during tooth development (pregnancy through about age 8). The risk increases with prolonged or repeated courses. Promethazine is not classically associated with intrinsic tooth staining, chloramphenicol is linked to aplastic anemia and gray baby syndrome, and fluoroquinolones are primarily associated with cartilage/tendon toxicity rather than tooth discoloration. Category reason: This item tests adverse drug effects and medication-related toxicities, which is a core Pharmacology concept rather than a nursing care decision scenario.
Which drug is first-line for ventricular fibrillation?
- Amiodarone
- Epinephrine
- Atropine
- Lidocaine
Explanation: Answer reason: In the ACLS algorithm for shockable cardiac arrest (ventricular fibrillation/pulseless VT), the initial priority is defibrillation with high-quality CPR, and the first medication given early in the cycle is epinephrine to improve coronary and cerebral perfusion via vasoconstriction. Antiarrhythmics such as amiodarone or lidocaine are added later if VF/pVT persists after shocks and vasopressor therapy. Atropine is used for symptomatic bradycardia and is not indicated for VF. Category reason: This question tests knowledge of emergency cardiac-arrest medications and their roles in resuscitation algorithms, which is primarily pharmacologic/foundational rather than a nursing-care prioritization scenario.
A nurse is caring for a client who has chronic renal disease and is receiving therapy with epoetin alfa. Which of the following laboratory results should the nurse review for an indication of a therapeutic effect of the medication?
- The leukocyte count
- The platelet count
- The hematocrit (Hct)
- The erythrocyte sedimentation rate (ESR)
Explanation: Answer reason: Epoetin alfa is an erythropoiesis-stimulating agent that promotes red blood cell production in the bone marrow, treating anemia common in chronic kidney disease due to low endogenous erythropoietin. A therapeutic response is reflected by rising hemoglobin/hematocrit values over time. Leukocyte count and ESR do not measure red cell mass or response to erythropoiesis. Platelet count is not the primary marker of efficacy for this medication. Category reason: This question tests the expected therapeutic laboratory response to a specific medication (epoetin alfa), which is primarily pharmacology.
A man with low mood, has lost interest in his activities. He is schizophrenic on clozapine and has gained about 12kg. What is the most appropriate medication to prescribe for him?
- Amitryptilline
- Mirtazapine
- Citalopram
- Duloxetine
Explanation: Answer reason: In a patient on clozapine with significant weight gain, an antidepressant that does not commonly promote additional weight gain is preferred. Tricyclics and mirtazapine are associated with weight gain and higher cardiometabolic risk, which would worsen his current problem. Duloxetine (an SNRI) is generally weight-neutral to modest in effect and is a reasonable choice for depressive symptoms/anhedonia while avoiding compounding clozapine-associated metabolic burden. SSRIs like citalopram can be used, but duloxetine is an acceptable option here given the weight-gain consideration and avoidance of more obesogenic choices. Category reason: This item tests selection of an appropriate antidepressant considering adverse-effect profiles and comorbid antipsychotic therapy, which is primarily pharmacology-focused rather than nursing care prioritization.
Patient of angina pectoris present sudden with drawal of which of the following drug aggravate of patient symptoms?
- Aspirin
- Beta blocker
- Glycerin trinitrate
- Amlodipine
Explanation: Answer reason: B. beta blocker Abrupt discontinuation can cause rebound sympathetic activity with increased heart rate and contractility, raising myocardial oxygen demand and worsening angina. This may precipitate severe ischemia and, in high-risk patients, myocardial infarction. Therefore beta blockers should generally be tapered rather than stopped suddenly in patients with coronary artery disease. Category reason: This item tests the pharmacologic consequence of abruptly stopping a cardiovascular drug (rebound effects), which is primarily foundational medication knowledge in Pharmacology rather than a nursing care prioritization scenario.
A discordant couple who wishes to have a baby may benefit from…?
- Post exposure prophylaxis
- Adherence counselling
- Being admitted to the hospital till delivery
- Pre-exposure prophylaxis
Explanation: Answer reason: PrEP is used to prevent HIV acquisition in an HIV-negative partner in a serodiscordant relationship, including during conception attempts, by reducing transmission risk when taken consistently. PEP is intended for short-term use after a specific potential exposure and is not a primary strategy for planned conception. Adherence counseling is important but is not the key preventive biomedical intervention being asked for. Routine hospitalization until delivery is not indicated solely due to discordant status. Category reason: This question tests knowledge of HIV prevention medication strategies (PrEP vs PEP) for serodiscordant couples planning conception, which is primarily pharmacologic prevention rather than a nursing care intervention scenario.
A nurse is discussing family planning with a client who has a history of DVT. The nurse should inform the client that this condition is a contraindication for which of the following birth control methods?
- Oral contraceptive
- Cervical cap
- Diaphragm
- Intrauterine device
Explanation: Answer reason: Estrogen-containing hormonal contraceptives increase hepatic production of clotting factors and reduce anticoagulant activity, raising the risk of venous thromboembolism recurrence. A prior DVT is therefore a major contraindication to combined oral contraceptives. Barrier methods (cervical cap, diaphragm) do not increase clot risk, and an IUD (especially copper) is not associated with increased VTE. Category reason: The item primarily tests knowledge of a medication-related contraindication (estrogen-containing oral contraceptives in patients with DVT history), which is a pharmacology safety principle rather than a nursing care priority scenario.
Having to take a larger dose of a drug to produce is a sign of?
- Depression
- Disease
- Sensitization
- Tolerance
Explanation: Answer reason: Needing progressively higher doses to achieve the same therapeutic effect reflects reduced drug responsiveness after repeated exposure. This occurs due to pharmacodynamic receptor adaptations and/or increased drug metabolism/clearance. It differs from sensitization, where repeated exposure produces an increased response at the same dose. Depression and disease are not the pharmacologic phenomenon described. Category reason: This tests a core pharmacologic concept—changes in drug response with repeated administration (tolerance vs sensitization)—which belongs to Pharmacology rather than a nursing-care decision scenario.
Triple antigen vaccine is not used for?
- Diphtheria
- Pertussis
- Typhoid
- Tetanus.
Explanation: Answer reason: The “triple antigen” vaccine refers to DPT, which provides immunization against diphtheria, pertussis, and tetanus. Typhoid vaccination is a separate immunization (e.g., Vi polysaccharide or oral Ty21a) and is not included in DPT. Therefore, among the options, typhoid is the condition for which the triple antigen vaccine is not used. Category reason: This is a vaccine-content/indication question about what diseases are covered by a named immunization (DPT), which is primarily pharmacology/immunization knowledge rather than a nursing-care action or prioritization scenario.
A patient with chronic pain due to osteoarthritis is prescribed an analgesic medication that is non-addictive and has an excellent safety profile. Which analgesic is most suitable for this patient?
- Morphine
- Tramadol
- Codeine
- Ibuprofen
Explanation: Answer reason: Osteoarthritis pain is typically managed first-line with non-opioid analgesics, especially NSAIDs, which are non-addictive and effective for inflammatory musculoskeletal pain. Morphine, tramadol, and codeine are opioid (or opioid-like) analgesics with dependence/abuse potential and opioid adverse effects (sedation, constipation, respiratory depression). While NSAIDs have important risks (GI bleeding, renal injury, cardiovascular risk), among the listed choices they best match the non-addictive requirement and typical OA therapy compared with opioids. Category reason: This item primarily tests knowledge of analgesic drug classes and their key properties (opioid vs NSAID, addiction potential, safety profile) rather than nursing interventions or prioritization, so it fits Pharmacology under NursingScience.
Aspirin overdose in a child can cause...?
- Metabolic alkalosis
- Respiratory alkalosis
- Metabolic acidosis
- Respiratory acidosis
Explanation: Answer reason: Salicylates stimulate the medullary respiratory center early in toxicity, causing hyperventilation and a primary respiratory alkalosis. As poisoning progresses, uncoupling of oxidative phosphorylation and accumulation of organic acids produce a high–anion gap metabolic acidosis, so mixed disorders can occur. In children, the initial and classic early acid–base change tested is respiratory alkalosis. Category reason: This tests the characteristic acid–base effect of salicylate toxicity (a drug overdose mechanism), which is primarily pharmacology rather than nursing intervention or prioritization.
Which class of antibiotics inhibits bacterial cell wall synthesis?
- Aminoglycosides
- Penicillins
- Tetracyclines
- Macrolides
Explanation: Answer reason: These beta-lactam antibiotics bind penicillin-binding proteins (transpeptidases) and block peptidoglycan cross-linking, which weakens the bacterial cell wall. The result is osmotic instability and bacterial lysis, especially in actively dividing organisms. In contrast, aminoglycosides inhibit the 30S ribosomal subunit, while tetracyclines inhibit 30S and macrolides inhibit 50S protein synthesis. Category reason: This question tests a drug class’s mechanism of action, which is a core Pharmacology concept rather than a nursing judgment or intervention priority.
Which drug did Americans spend the most money on in 2024?
- Tirzepatide (Mounjaro, Zepbound)
- Adalimumab (Humira)
- Apixaban (Eliquis)
- Semaglutide (Ozempic, Wegovy)
Explanation: Answer reason: A. Tirzepatide (Mounjaro, Zepbound) This item tests knowledge about medication utilization/spending trends and the drugs’ prominence in the U.S. market. In 2024, GLP-1/GIP incretin-based therapies for diabetes/weight loss drove exceptionally high prescription volume and total expenditures, and tirzepatide products were reported as the top spend category among individual drugs. The other listed agents have high costs and broad use, but they did not surpass the total spending attributed to tirzepatide in 2024 market summaries. Category reason: This question centers on identifying a specific medication based on drug-related market data rather than a nursing intervention or patient-care decision, which aligns best with Pharmacology.
Grey baby syndrome occurs due to:
- Tetracycline
- Chloramphenicol
- Aminoglycosides
- Rifampicin
Explanation: Answer reason: Neonates have immature hepatic glucuronidation and reduced renal clearance, leading to accumulation of this drug and toxicity. This can cause abdominal distension, vomiting, hypothermia, cyanosis/ashen-gray discoloration, and cardiovascular collapse. The syndrome is classically associated with high serum levels in newborns, especially premature infants, or when exposure occurs via maternal therapy. Category reason: This question tests an adverse drug reaction and the causative antibiotic, which is a core topic in Pharmacology rather than nursing care prioritization.
Why a TB patient is recommended a regimen of 4 drugs on first visit?
- To avoid emergence of resistance
- To avoid side effects
- To cure disease easily
- None of the above
Explanation: Answer reason: Initial TB therapy uses multiple drugs because the mycobacterial population can contain naturally resistant subclones; using several agents with different mechanisms markedly reduces the chance that resistant organisms will survive and proliferate. Combination therapy also helps prevent acquired resistance from inadequate or partial treatment. Standard first-line regimens (e.g., HRZE) are designed to rapidly reduce bacterial burden while protecting against resistance development. Category reason: This question tests the pharmacologic rationale for combination anti-tubercular therapy (mechanism and purpose of multidrug regimens), which is primarily a Pharmacology concept rather than a nursing-care prioritization/intervention scenario.
A 22-year-old woman presents with painful genital ulcers and inguinal lymphadenopathy. Her history reveals recent sexual contact with a partner who had a similar rash. A clinical diagnosis of first-episode genital herpes is made. Which of the following is the most appropriate treatment?
- Oral acyclovir 400 mg three times daily for 7-10 days.
- Topical acyclovir ointment.
- Intravenous acyclovir.
- Oral azithromycin 1 g single dose.
Explanation: Answer reason: First-episode genital herpes should be treated with systemic antiviral therapy to shorten symptom duration, reduce viral shedding, and improve lesion healing. Oral acyclovir at this dosing for 7–10 days is a standard recommended regimen for an initial episode in an immunocompetent adult. Topical antivirals have minimal clinical benefit in genital HSV, and IV acyclovir is reserved for severe/disseminated disease or significant immunocompromise. Azithromycin targets bacterial STIs (e.g., chlamydia) and does not treat HSV. Category reason: This is primarily testing selection of the correct antiviral drug regimen (route, dose, duration) for a specific infectious diagnosis, which is a pharmacologic management question rather than nursing-care prioritization.
Flucanazole is specifically used in?
- Bacterial vaginosis
- Trichomoniasis
- Canididiasis
- Chlamydiasis
Explanation: Answer reason: Fluconazole is an azole antifungal that inhibits fungal ergosterol synthesis, disrupting the cell membrane. It is commonly used for Candida infections such as vulvovaginal candidiasis and oropharyngeal/esophageal candidiasis. In contrast, bacterial vaginosis is treated with antibiotics like metronidazole or clindamycin, trichomoniasis with metronidazole or tinidazole, and chlamydial infections with doxycycline or azithromycin. Category reason: This item tests knowledge of an antimicrobial medication’s specific indication and matching pathogen type, which is a core Pharmacology concept rather than nursing-process decision-making.
Odd One Out Beta-Blockers - Relieve symptoms of hyperthyroidism by blocking the effects of thyroid hormones
- Propranolol
- Atenolol
- Metoprolol
- Methimazole
Explanation: Answer reason: The other listed medications are beta-blockers used for symptomatic control of hyperthyroidism (e.g., tachycardia, tremor) by blunting adrenergic effects. This choice is an antithyroid thionamide that reduces thyroid hormone synthesis (via thyroid peroxidase inhibition) and treats the underlying hormone overproduction rather than just symptoms. Therefore it does not belong to the beta-blocker group described in the stem. Category reason: This item tests drug class identification and mechanisms/uses of agents in hyperthyroidism management, which is pharmacology-focused rather than nursing care prioritization.
A 60-year-old patient is recovering from a recent myocardial infarction. He is prescribed aspirin, atorvastatin, lisinopril, and metoprolol. He complains of a persistent dry cough. Question: Which medication is most likely causing his symptom?
- Atorvastatin
- Aspirin
- Lisinopril
- Metoprolol
Explanation: Answer reason: ACE inhibitors commonly cause a persistent, nonproductive cough due to increased bradykinin (and substance P) from inhibition of its breakdown. This adverse effect is classically described as a dry, nagging cough and can occur days to months after starting therapy. The other listed post-MI medications more typically cause different adverse effects (e.g., statin myopathy, aspirin GI irritation/bleeding, beta-blocker bradycardia). Category reason: This question tests recognition of a characteristic adverse drug effect (ACE inhibitor–induced cough), which is core Pharmacology content rather than a nursing prioritization/intervention scenario.
A 55-year-old male patient with a history of hypertension and type 2 diabetes presents to the clinic. His blood pressure today is 160/95 mmHg. He is currently on metformin 500 mg BID for his diabetes but is not on any antihypertensive medication. Which of the following would be the most appropriate first-line antihypertensive therapy for this patient?
- Hydrochlorothiazide
- Lisinopril
- Amlodipine
- Atenolol
Explanation: Answer reason: ACE inhibitors are preferred in many patients with diabetes because they lower blood pressure while providing renal protection by reducing intraglomerular pressure and slowing diabetic nephropathy progression. This patient has stage 2 hypertension (160/95 mmHg), and an ACE inhibitor is an appropriate first-line foundational agent. Thiazides and calcium channel blockers are also first-line for hypertension in general, but they do not provide the same kidney-protective benefit in diabetes. Beta-blockers like atenolol are not first-line for uncomplicated hypertension and can mask hypoglycemia symptoms. Category reason: This item tests selection of an antihypertensive drug class based on comorbidity (diabetes) and medication effects/indications, which is primarily pharmacology knowledge rather than nursing process or prioritization.
Which drug is a selective β1-blocker?
- Propranolol
- Atenolol
- Labetalol
- Carvedilol
Explanation: Answer reason: Atenolol is a cardioselective beta-blocker with higher affinity for β1 receptors in the heart, especially at lower to moderate doses. Propranolol is nonselective (blocks both β1 and β2), increasing risk of bronchospasm in susceptible patients. Labetalol and carvedilol are mixed antagonists (β-blockade plus α1-blockade) rather than selective β1 agents. Therefore, among the listed choices, the β1-selective agent is the best answer. Category reason: This question tests identification of beta-blocker receptor selectivity, a drug-class property and mechanism-of-action concept, which is core Pharmacology.
Which medication prevents liver transplant rejection?
- Vancomycin
- Tacrolimus
- Metformin
- Furosemide
Explanation: Answer reason: It is a calcineurin inhibitor immunosuppressant that decreases T-cell activation by reducing IL-2 transcription, which is central to preventing graft rejection after solid-organ transplantation. This drug is commonly used as maintenance immunosuppression in liver transplant recipients, often alongside corticosteroids and/or antimetabolites. The other options are not immunosuppressants used to prevent rejection (antibiotic, antihyperglycemic, and loop diuretic respectively). Category reason: This item tests knowledge of which drug class is used to prevent organ transplant rejection, which is a pharmacologic mechanism/indication question rather than a nursing care decision.
All of the following are contraindication for combined oral contraceptive pills except?
- Diabetes mellitus
- Previous history of stroke
- Previous history of thrombo-embolism
- Peripheral vascular disease
Explanation: Answer reason: Combined oral contraceptives increase thrombotic risk due to the estrogen component, so prior stroke, prior thromboembolism, and significant peripheral vascular disease are considered contraindications. Diabetes by itself is not an absolute contraindication; the main concern is diabetes with vascular complications or long duration, where cardiovascular risk is higher. Therefore, among the listed choices, diabetes mellitus is the exception. Category reason: This question tests knowledge of drug contraindications and safety considerations for combined oral contraceptive pills, which is primarily pharmacology rather than nursing care prioritization.
Drugs are excreted from the body through?
- Breast milk, bile
- Intestine
- Kidney
- All
Explanation: Answer reason: Drugs and their metabolites can be eliminated by multiple routes. Renal excretion via urine is the major pathway for many medications, while hepatobiliary elimination can pass into bile and then into the gastrointestinal tract for fecal excretion. Some drugs also appear in breast milk due to passive diffusion and pH/ion trapping, which is clinically important for lactating patients. Therefore, each listed route is a valid pathway of drug excretion. Category reason: This question tests routes of drug elimination (excretion via kidney, bile/feces, and breast milk), which is a core concept of pharmacokinetics within Pharmacology rather than a nursing care decision.
Which of the following antihypertensives is not safe during pregnancy?
- Labetalol
- ACE inhibitors
- Diuretics
- Nifedipine
Explanation: Answer reason: They are contraindicated in pregnancy because fetal exposure (especially in the 2nd and 3rd trimesters) can cause fetopathy such as renal dysgenesis/failure, oligohydramnios, skull hypoplasia, and neonatal hypotension, and they also carry risk in the 1st trimester. In contrast, labetalol and nifedipine are commonly used first-line agents for hypertension in pregnancy. Diuretics are not first-line and may reduce plasma volume, but they are not the classic absolute contraindication in the way this drug class is. Category reason: This item tests medication safety/contraindications of antihypertensive drug classes in pregnancy, which is core Pharmacology knowledge rather than nursing prioritization or care management.
Montelukast works by blocking which of the following substances?
- Histamine
- Prostaglandins
- Leukotrienes
- Lymphocytes
Explanation: Answer reason: Montelukast is a leukotriene receptor antagonist that blocks cysteinyl leukotriene (CysLT1) receptors, reducing leukotriene-mediated bronchoconstriction, mucus production, and airway edema. This mechanism is helpful for asthma prophylaxis and allergic rhinitis but is not effective for acute bronchospasm relief. The other options reflect different pathways: histamine is targeted by antihistamines, prostaglandins by NSAIDs, and lymphocytes are not the direct pharmacologic target of this drug. Category reason: This question tests a drug’s mechanism of action (which mediator pathway it blocks), which is core Pharmacology rather than nursing care prioritization or interventions.
A 27-year-old woman presents with vaginal discharge and mild lower abdominal pain. A nucleic acid amplification test (NAAT) confirms Chlamydia trachomatis infection. Screening also reveals a co-infection with Neisseria gonorrhoeae. Question: What is the appropriate treatment for this patient?
- Azithromycin 1 g orally single dose.
- Ceftriaxone 500 mg IM and doxycycline 100 mg orally twice daily for 7 days.
- Ciprofloxacin 500 mg orally and azithromycin 1 g orally.
- Metronidazole 2 g orally.
Explanation: Answer reason: Gonorrhea is treated with intramuscular ceftriaxone, and when chlamydia has not been excluded or is confirmed, concurrent antichlamydial therapy is required. Doxycycline for 7 days is first-line for uncomplicated chlamydial cervicitis/urethritis in nonpregnant adults. The other options either treat only one organism, use a non-recommended agent for gonorrhea due to resistance (fluoroquinolone), or target a different STI (trichomoniasis). Category reason: This item tests evidence-based antimicrobial regimen selection for specific pathogens (gonorrhea with confirmed chlamydia co-infection), which is primarily pharmacologic knowledge.
Case: A 50-year-old male presents to the emergency department with a severe headache, blurred vision, and blood pressure reading of 210/120 mmHg. He has a history of hypertension but has been non-compliant with his medications. Question: Which of the following intravenous medications would be the most appropriate for the acute management of his hypertensive crisis?
- Labetalol
- Amlodipine
- Hydrochlorothiazide
- Clonidine
Explanation: Answer reason: Hypertensive crisis requires rapid, titratable blood pressure reduction using intravenous agents with quick onset. An IV mixed alpha- and beta-blocker can lower systemic vascular resistance without causing significant reflex tachycardia, making it appropriate for acute management in the ED. The other choices are primarily oral medications used for chronic control (or are not preferred IV agents for emergency treatment) and do not provide the controllable, immediate effect needed. Category reason: This item tests medication selection and route for emergent blood-pressure control, focusing on pharmacologic properties and appropriate acute IV therapy rather than nursing prioritization steps.
Whose you use to fungal disease of this "Lotion"???
- Permethrin
- Clobyte-s
- Keto
- Onebate-SD
Explanation: Answer reason: Fungal skin infections are treated with antifungal agents; “keto” most plausibly refers to ketoconazole, an imidazole antifungal commonly used topically for dermatophyte and yeast infections. Permethrin is an ectoparasiticide used for scabies and lice, not fungi. The remaining brand-like names are not clearly identifiable as antifungals from the stem, making the antifungal option the best-supported choice. Category reason: This item tests recognition of which medication is appropriate for a fungal infection, which is drug-therapy knowledge and therefore falls under Pharmacology rather than nursing care prioritization.
Which Injection use in highly pain..................????
- Diclofenac
- Mefanemic
- Pentazesic
- Tramadol
Explanation: Answer reason: For severe (highly intense) pain, an opioid analgesic is typically more appropriate than NSAIDs. Diclofenac and mefenamic acid are NSAIDs mainly used for mild-to-moderate pain and inflammatory conditions and often have a ceiling effect for analgesia. Pentazocine (commonly marketed as “Pentazocine/Pentazocine + promethazine” and referenced here as Pentazesic) is an opioid agonist–antagonist analgesic used for moderate-to-severe pain, making it the best choice among the options. Category reason: This item tests knowledge of analgesic drug classes (NSAIDs vs opioid analgesics) and appropriate selection for severe pain, which is a pharmacology concept rather than a nursing process/prioritization scenario.
The drug of choice for acute anaphylaxis is?
- Hydrocortisone
- Diphenhydramine
- Epinephrine (Adrenaline)
- Salbutamol
Explanation: Answer reason: It is the first-line treatment because it rapidly reverses life-threatening airway edema/bronchospasm (beta-2 effects) and hypotension/shock (alpha-1 vasoconstriction), and also helps reduce further mediator release. Antihistamines (e.g., diphenhydramine) and corticosteroids (e.g., hydrocortisone) are adjuncts with slower onset and do not reliably treat airway compromise or shock. Inhaled beta-agonists like salbutamol may help persistent bronchospasm but do not address systemic vasodilation and airway edema. Category reason: This is primarily a pharmacology knowledge question asking for the first-line medication for a medical emergency (anaphylaxis), rather than a nursing care prioritization or intervention sequence.
Which of the following drugs is metabolized by plasma cholinesterase?
- BUPIVACAINE
- LIDOCAINE
- ROPIVACAINE
- TETRACAINE
Explanation: Answer reason: Ester local anesthetics are hydrolyzed in the plasma by pseudocholinesterase (plasma cholinesterase), which results in relatively rapid metabolism compared with amide anesthetics. Tetracaine is an ester anesthetic, whereas lidocaine, bupivacaine, and ropivacaine are amides that are primarily metabolized hepatically. This distinction is clinically important in patients with pseudocholinesterase deficiency or when considering allergy risk (more common with ester metabolites such as PABA). Category reason: This item tests drug classification and metabolism pathways of local anesthetics (ester vs amide) and the responsible enzyme, which is core Pharmacology knowledge rather than a nursing care decision.
A 45-year-old man takes diphenhydramine for seasonal allergies. Which of the following adverse effects is most likely due to its pharmacological profile?
- Bradycardia
- Diarrhea
- Sedation
- Myopathy
- Tachypnea
Explanation: Answer reason: Diphenhydramine is a first-generation H1 antihistamine that readily crosses the blood–brain barrier and blocks central histamine signaling, producing prominent drowsiness. Its antimuscarinic properties further contribute to CNS depression and impaired alertness, making sedation one of its most common dose-limiting adverse effects. The other listed options are not characteristic primary adverse effects of H1 blockade for seasonal allergies. Category reason: This item tests knowledge of diphenhydramine’s drug class and expected adverse effects based on receptor activity, which is primarily Pharmacology rather than nursing decision-making or care prioritization.
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