Question 1

A 25-year-old female presents with fever, headache, and abdominal pain. Blood culture confirms Salmonella typhi. What is the drug of choice for treating enteric fever, in areas of multidrug resistance?

Accepted Answer

Answer reason: Fluoroquinolones have strong activity against Salmonella typhi and achieve high intracellular concentrations, which is important because the organism can survive within macrophages. In many settings with resistance to older first-line agents, ampicillin and trimethoprim-sulfamethoxazole have high failure rates due to widespread MDR strains. Doxycycline is not a standard effective therapy for typhoid fever. When local fluoroquinolone resistance is high, third-generation cephalosporins or azithromycin are often preferred, but among the listed choices this is the best option.
Category reason: This item tests selection of an appropriate antimicrobial agent for a specific pathogen and resistance scenario, which is primarily a pharmacology (antibiotic choice) knowledge question rather than a nursing care/intervention prioritization scenario.

Question 2

Inj Heparin is used for?

Accepted Answer

Answer reason: Heparin is an anticoagulant that potentiates antithrombin III, inhibiting thrombin (factor IIa) and factor Xa to reduce fibrin clot formation. Clinically it is used for prevention and treatment of venous thromboembolism (e.g., DVT/PE) and as anticoagulation in settings like acute coronary syndromes and some procedures. It does not treat infections, lower blood pressure, or act as an antipyretic. Major safety concern is bleeding, and monitoring may include aPTT for unfractionated heparin and platelet counts for heparin-induced thrombocytopenia.
Category reason: This item tests the primary therapeutic use and mechanism-related indication of a medication (heparin), which is core Pharmacology knowledge rather than nursing judgment about care prioritization.

Question 3

Which of the following is the drug of choice for motion sickness?

Accepted Answer

Answer reason: Motion sickness is primarily mediated by vestibular input to the vomiting center via muscarinic (and histaminic) pathways. Scopolamine is an antimuscarinic that effectively prevents motion-induced nausea/vomiting, commonly used as a transdermal patch for prophylaxis. Ondansetron is most effective for chemotherapy/postoperative nausea rather than vestibular causes, domperidone is a prokinetic/antiemetic, and loperamide is an antidiarrheal without anti–motion sickness benefit.
Category reason: This item asks for the drug of choice for a condition, testing medication selection and mechanism-based efficacy, which is primarily Pharmacology rather than a nursing care prioritization scenario.

Question 4

Which med causes bleeding risk?

Accepted Answer

Answer reason: It is a vitamin K antagonist anticoagulant that reduces synthesis of clotting factors II, VII, IX, and X, thereby increasing the risk of bleeding. Clinically, patients require INR monitoring and counseling to watch for bruising, hematuria, melena, or prolonged bleeding. The other listed drugs are not primary anticoagulants and do not typically cause clinically significant bleeding as their main adverse effect.
Category reason: This question tests drug mechanism/adverse effect recognition (which medication increases bleeding risk), which is core Pharmacology knowledge rather than a nursing judgment/prioritization scenario.

Question 5

A hypertensive patient develops leg swelling and dry cough. Suspected drug?

Accepted Answer

Answer reason: ACE inhibitors commonly cause a persistent dry cough due to accumulation of bradykinin in the respiratory tract. This adverse effect is characteristic for the class and is much less common with ARBs (e.g., losartan). Leg swelling can occur from medication effects and/or underlying cardiovascular/renal issues, but the dry cough most strongly points to an ACE inhibitor as the culprit. Evaluating for angioedema and considering switching to an ARB are typical management considerations.
Category reason: This question tests recognition of medication adverse effects and identifying the causative antihypertensive agent, which is primarily Pharmacology.

Question 6

Which gas is known as “laughing gas”?

Accepted Answer

Answer reason: It is an inhaled anesthetic/analgesic historically used for its euphoric and sedative effects, which is why it is commonly called “laughing gas.” It is used clinically in dentistry and procedural settings for short-term anxiolysis and pain control. Nitric oxide is primarily a pulmonary vasodilator, carbon dioxide is a metabolic waste gas, and methane is a combustible hydrocarbon without anesthetic use in routine care.
Category reason: This question tests recognition of a specific inhaled agent by its common name and clinical use, which fits Pharmacology rather than nursing care prioritization or interventions.

Question 7

A 28-year-old pregnant woman is diagnosed with active pulmonary tuberculosis. Which of the following is the most appropriate treatment regimen for her?

Accepted Answer

Answer reason: In pregnancy, the standard regimen for drug-susceptible active TB typically includes isoniazid and rifampin with ethambutol; pyrazinamide is often avoided in many exam/teaching settings due to limited fetal safety data in some guidelines. A longer total duration (commonly 9 months) is recommended when pyrazinamide is omitted. Streptomycin is contraindicated in pregnancy (fetal ototoxicity), and regimens missing key first-line agents risk treatment failure and resistance.
Category reason: This question tests selection of an appropriate anti-tuberculosis drug regimen in pregnancy, which is primarily medication-therapy knowledge within Pharmacology rather than nursing prioritization or care management.

Question 8

Case: A 45-year-old male presents with burning epigastric pain that worsens at night and improves after eating. He has a history of non-steroidal anti-inflammatory drug (NSAID) use for chronic back pain. Endoscopy reveals a gastric ulcer. Question: Which of the following is the most appropriate initial therapy for this patient?

Accepted Answer

Answer reason: Proton pump inhibitors provide the most effective acid suppression and are first-line for healing NSAID-associated gastric ulcers. Compared with H2 blockers and antacids, they achieve higher healing rates and better symptom control, especially when ongoing ulcer risk exists. Misoprostol is mainly used for NSAID-ulcer prophylaxis and is limited by frequent GI adverse effects and multiple daily dosing, making it less suitable as initial treatment for an established ulcer. Antacids offer only short-term symptomatic relief and do not reliably heal ulcers.
Category reason: This item tests selection of an acid-suppressing medication regimen for an NSAID-associated gastric ulcer, which is primarily pharmacologic management rather than nursing prioritization or safety actions.

Question 9

PGE2 stand for...

Accepted Answer

Answer reason: PGE2 refers to prostaglandin E2, and dinoprostone is the pharmaceutical form of prostaglandin E2 used clinically (e.g., cervical ripening and labor induction). Misoprostol is a prostaglandin E1 (PGE1) analog, not PGE2. Oxytocin is a peptide hormone that stimulates uterine contractions via oxytocin receptors, and methylergonovine (Methergine) is an ergot alkaloid uterotonic used for postpartum hemorrhage, neither of which are prostaglandin E2.
Category reason: This is a drug identification question asking which medication corresponds to prostaglandin E2, which is primarily pharmacology knowledge rather than a nursing intervention/prioritization scenario.

Question 10

Which of the following medicines is used for the pharmacological closure of patent ductus arteriosus?

Accepted Answer

Answer reason: It closes a PDA by inhibiting cyclooxygenase, which decreases prostaglandin (especially PGE2) synthesis that normally keeps the ductus arteriosus patent. Reduced prostaglandins promote ductal constriction and functional closure, particularly in preterm infants. In contrast, prostaglandin infusion is used to maintain ductal patency in certain cyanotic congenital heart lesions, not to close it.
Category reason: This question tests knowledge of a specific drug used to achieve a therapeutic effect (PDA closure) and its pharmacologic mechanism, which is primarily a Pharmacology concept rather than a nursing care judgment item.

Question 11

A nurse is caring for a client at 30 weeks gestation experiencing preterm labor. The healthcare provider prescribes indomethacin as a tocolytic. Which of the following is a potential fetal complication associated with indomethacin use in this client?

Accepted Answer

Answer reason: Indomethacin is an NSAID that inhibits prostaglandin synthesis; fetal prostaglandins help keep the ductus arteriosus open in utero. Suppressing prostaglandins can constrict and prematurely close the ductus, especially with later gestational age exposure. This can lead to fetal pulmonary hypertension and right-sided heart strain. Other listed complications are more directly tied to prematurity itself rather than this specific drug effect.
Category reason: This item tests a medication’s mechanism-based fetal adverse effect (NSAID/prostaglandin inhibition causing ductal constriction), which is primarily Pharmacology rather than a nursing-prioritization/intervention decision.

Question 12

Pilocarpine is primarily used to treat?

Accepted Answer

Answer reason: It is a direct muscarinic (cholinergic) agonist that causes miosis and contraction of the ciliary muscle, which opens the trabecular meshwork and increases aqueous humor outflow. This lowers intraocular pressure, making it useful particularly in glaucoma (and sometimes acute angle-closure as an adjunct). Its cholinergic effects would not make it a primary treatment for hypertension, diabetes, or asthma, and it could worsen bronchospasm in asthma.
Category reason: This item tests the primary clinical use of a specific drug and its mechanism-based indication, which is a core Pharmacology concept.

Question 13

Odd One Out Antihypertensive drugs: Identify the odd one out.

Accepted Answer

Answer reason: ACE inhibitors, beta-blockers, and calcium channel blockers are standard drug classes used to treat hypertension. Sulfonylureas are oral hypoglycemic agents used in type 2 diabetes mellitus by stimulating pancreatic insulin release. Therefore, they do not belong to the antihypertensive drug classes listed. The odd one out is the antidiabetic class.
Category reason: This item tests recognition of medication classes and their primary therapeutic indications, which is a core Pharmacology concept rather than a nursing care decision or prioritization task.

Question 14

Paracetamol belongs to which class of drug?

Accepted Answer

Answer reason: It is used primarily to relieve mild-to-moderate pain and reduce fever, with minimal anti-inflammatory activity compared with NSAIDs. Its clinical effect is largely mediated through central inhibition of prostaglandin synthesis. It is not an antibiotic, antihistamine, or antacid, and its key safety concern is dose-related hepatotoxicity.
Category reason: This question tests drug classification and therapeutic class, which is a core Pharmacology concept rather than a nursing judgment/action scenario.

Question 15

A 70-year-old man with chronic kidney disease is diagnosed with tuberculosis. Which of the following adjustments should be made to his treatment regimen?

Accepted Answer

Answer reason: Pyrazinamide and ethambutol are primarily eliminated by the kidneys, so reduced renal function increases the risk of drug accumulation and toxicity. In chronic kidney disease, these agents typically require dose adjustment, often by extending the dosing interval (e.g., thrice weekly) rather than changing INH or rifampin. INH and rifampin are largely hepatically cleared and generally do not require renal dosing changes. Ethambutol is not primarily nephrotoxic, but accumulation can increase the risk of optic neuritis, which is why renal adjustment is needed rather than routine avoidance.
Category reason: This question tests how anti-tuberculosis medications should be adjusted in chronic kidney disease, which is primarily a drug dosing/clearance and toxicity issue within Pharmacology.

Question 16

Which of the following drug in DOTS therapy can cause deafness?

Accepted Answer

Answer reason: Streptomycin is an aminoglycoside, and aminoglycosides are classically ototoxic, causing cochlear and/or vestibular damage that can lead to tinnitus and irreversible hearing loss. This risk increases with higher doses, prolonged therapy, renal impairment, and concurrent use of other ototoxic drugs (e.g., loop diuretics). In contrast, ethambutol is known for optic neuritis, isoniazid for peripheral neuropathy (B6 deficiency–related), and rifampicin for hepatotoxicity and orange discoloration of body fluids.
Category reason: This is primarily a question about adverse drug effects of anti-tubercular medications, which is tested under Pharmacology rather than nursing care prioritization or interventions.

Question 17

Case: A patient is diagnosed with mild persistent asthma. Question: What is the drug of choice for long-term control?

Accepted Answer

Answer reason: In mild persistent asthma, first-line long-term controller therapy is a daily inhaled anti-inflammatory medication to reduce airway inflammation and hyperresponsiveness. This improves symptom control and decreases exacerbation risk over time. Long-acting beta-agonists are not used as monotherapy due to increased risk of severe outcomes and are reserved as add-on therapy when control is inadequate. Short-acting beta-agonists are for quick relief of acute symptoms, while leukotriene receptor antagonists are an alternative controller but generally less effective than inhaled corticosteroids.
Category reason: This item tests pharmacologic selection for chronic asthma control (controller vs reliever medications and relative roles), which is primarily medication knowledge rather than nursing process or prioritization, fitting Pharmacology.

Question 18

What is the main purpose of assay?

Accepted Answer

Answer reason: An assay is a quantitative test used in pharmaceutical analysis to measure the amount/potency of the active ingredient in a drug substance or dosage form. This ensures the product meets labeled strength and pharmacopeial specifications for efficacy and safety. Color, odor, and weight checks are aspects of physical/organoleptic evaluation or uniformity testing but do not directly quantify active drug content.
Category reason: This question tests pharmaceutical quality-control knowledge about measuring drug potency/strength, which falls under Pharmacology rather than nursing care decision-making.

Question 19

A patient on ACE inhibitors develops a persistent dry cough. What’s the alternative?

Accepted Answer

Answer reason: ACE inhibitor–associated dry cough is a class adverse effect related to increased bradykinin and substance P. ARBs provide similar blood pressure and renoprotective benefits by blocking angiotensin II receptors without significantly increasing bradykinin, so the cough typically resolves after the switch. Continuing the ACE inhibitor or adding cough syrup does not address the mechanism, and adding a diuretic is not an appropriate substitution for this adverse effect.
Category reason: This question tests medication adverse effects and an appropriate therapeutic substitution within antihypertensive drug classes, which is primarily pharmacology knowledge rather than a nursing-care prioritization task.

Question 20

Nitroglycerine is administered by which route-?

Accepted Answer

Answer reason: Sublingual administration provides rapid absorption directly into systemic circulation, helping relieve acute angina quickly. It also largely bypasses first-pass hepatic metabolism, which would significantly reduce oral bioavailability. Inhalation is not a standard route for nitroglycerin, and while IV parenteral forms exist for inpatient titration, the classic and most tested route for acute attacks is sublingual.
Category reason: This item tests knowledge of a drug’s common administration route and pharmacokinetic rationale, which is a core Pharmacology concept rather than a nursing judgment scenario.

Question 21

The study of the relationship between the physical/chemical properties of a drug, the dosage form, and the biological effects is called?

Accepted Answer

Answer reason: It focuses on how a drug’s physicochemical properties and formulation (dosage form) influence absorption and the resulting therapeutic/biologic response. This links formulation factors (e.g., dissolution, particle size, excipients) to bioavailability and clinical effect. Pharmacokinetics is broader (ADME over time) and does not specifically emphasize dosage-form and physicochemical determinants as the core definition here.
Category reason: This is a foundational medication-science definition about how drug properties and dosage form affect biologic response, which is primarily tested within pharmacology principles rather than bedside nursing decision-making.

Question 22

Montelukast is primarily used in the treatment of which of the following conditions?

Accepted Answer

Answer reason: B. Asthma Montelukast is a leukotriene receptor antagonist used for long-term control of asthma, particularly for prevention of symptoms and exercise-induced bronchospasm. It reduces leukotriene-mediated bronchoconstriction, airway edema, and inflammation. It is not a rescue medication for acute asthma attacks and is not indicated for hypertension or diabetes.
Category reason: This question tests knowledge of a specific medication’s primary indication and mechanism-based use, which is a core Pharmacology concept rather than a nursing care/prioritization scenario.

Question 23

What is the primary purpose of a drug?

Accepted Answer

Answer reason: Medications are defined by their intended therapeutic use, which includes preventing illness (e.g., vaccines, prophylaxis), diagnosing conditions (e.g., contrast agents), or treating disease by modifying physiological or pathological processes. Taste and color are formulation/excipient considerations and are not the primary purpose of the drug itself. Education is a healthcare activity, not a pharmacologic function.
Category reason: This question tests the fundamental definition and purpose of drugs/medications, which is a core Pharmacology concept rather than a patient-care decision.

Question 24

A 32-year-old man presents with a 3-month history of productive cough, weight loss, night sweats, and fever. Sputum smear reveals acid-fast bacilli. Culture confirms drug-susceptible Mycobacterium tuberculosis. Which of the following is the most appropriate initial treatment regimen?

Accepted Answer

Answer reason: Drug-susceptible pulmonary tuberculosis is treated initially with a 4-drug intensive phase (isoniazid, rifampin, pyrazinamide, ethambutol) to rapidly reduce bacterial burden and prevent emergence of resistance. This is followed by a continuation phase with isoniazid and rifampin to complete a standard total duration of 6 months for uncomplicated disease. Regimens missing key first-line agents or using fewer drugs up front increase the risk of treatment failure and resistance, and unnecessarily prolonged regimens are not standard when susceptibility is confirmed.
Category reason: This question tests knowledge of first-line anti-tuberculosis drug regimens and durations, which is primarily pharmacology rather than nursing care prioritization or safety interventions.

Question 25

Pediculosis can be treated with of the following except?

Accepted Answer

Answer reason: Standard pediculicides include permethrin 1%, ivermectin (topical or oral in certain cases), and lindane (rarely used due to neurotoxicity risk). Benzyl alcohol is used for head lice treatment as a 5% topical lotion; “70%” refers to a disinfectant-strength alcohol concentration and is not a recommended/standard lice therapy. High-concentration alcohol can also irritate skin and is not an evidence-based pediculosis treatment. Therefore, this choice is the exception among the listed options.
Category reason: This question tests knowledge of drug/chemical agents used to treat pediculosis and which agent/concentration is not appropriate, which is primarily Pharmacology rather than nursing care prioritization.

Question 26

Which medication is used as a bronchodilator in asthma?

Accepted Answer

Answer reason: It is a short-acting beta-2 agonist that relaxes bronchial smooth muscle, producing rapid relief of acute bronchospasm in asthma. Prednisone is a systemic corticosteroid used to reduce airway inflammation but does not directly bronchodilate immediately. Loratadine is an H1-antihistamine mainly for allergic symptoms, and furosemide is a loop diuretic used for fluid overload, neither of which treat bronchospasm.
Category reason: This question tests identification of a drug class and its therapeutic action in asthma, which is primarily pharmacology knowledge rather than a nursing management decision.

Question 27

Odd One Out Antidepressants: Identify the odd one out.

Accepted Answer

Answer reason: The other choices are drug classes primarily used as antidepressants (SSRIs, MAOIs, and tricyclic antidepressants). This option is primarily an anxiolytic/sedative-hypnotic class that works by potentiating GABA-A activity rather than by directly increasing monoamine neurotransmission to treat depression. Although it may be used short-term for anxiety or insomnia that can accompany depressive episodes, it is not categorized as an antidepressant class. It also carries notable risks of tolerance, dependence, and withdrawal with prolonged use.
Category reason: This item tests knowledge of medication classes and their primary therapeutic indications, which is a core Pharmacology concept rather than a nursing intervention or prioritization decision.

Question 28

Case: A patient with COPD exacerbation is treated with roflumilast. Question: What is the primary mechanism of action of roflumilast?

Accepted Answer

Answer reason: Roflumilast is a selective PDE-4 inhibitor that increases intracellular cAMP in inflammatory cells, leading to reduced release of pro-inflammatory mediators. Its main clinical role in COPD is anti-inflammatory prevention of exacerbations (particularly chronic bronchitis phenotype), not acute bronchodilation. Beta-2 agonists and muscarinic antagonists are bronchodilators, while corticosteroids act via glucocorticoid receptor activation rather than PDE-4 inhibition.
Category reason: This item tests a drug’s mechanism of action used in COPD management, which is core Pharmacology content rather than a nursing-care prioritization or safety/intervention decision.

Question 29

A 24-year-old male presents with dysuria and purulent urethral discharge. He reports unprotected sexual contact with a new partner 1 week ago. Gram stain of the discharge shows intracellular Gram-negative diplococci consistent with Neisseria gonorrhoeae. The patient denies any known drug allergies. Question: What is the most appropriate drug of choice for this patient?

Accepted Answer

Answer reason: Uncomplicated gonococcal urethritis is treated first-line with a single intramuscular dose of ceftriaxone due to widespread resistance to older agents. Azithromycin alone is not recommended as monotherapy because of increasing macrolide resistance and inferior efficacy for gonorrhea. Fluoroquinolones (e.g., ciprofloxacin) are generally avoided unless susceptibility is known, given significant resistance. Doxycycline is used to treat possible concomitant chlamydial infection, but it does not adequately treat gonorrhea by itself.
Category reason: This item tests selection of the appropriate antimicrobial regimen for a specific infection, which is a medication-therapy knowledge question rather than nursing-care prioritization; therefore it fits Pharmacology.

Question 30

Side effect of antipsychotic drug is?

Accepted Answer

Answer reason: These drugs (especially first-generation antipsychotics) commonly block dopamine D2 receptors in the nigrostriatal pathway, leading to movement disorders. Typical manifestations include acute dystonia, akathisia, parkinsonism, and tardive dyskinesia. While insomnia or dizziness can occur, they are not the hallmark adverse effect most classically associated with antipsychotics in exams.
Category reason: This question tests adverse effects of a medication class (antipsychotics), which is core Pharmacology rather than nursing-priority decision-making.

Question 31

Lithium is the drug of choice to treat?

Accepted Answer

Answer reason: Lithium is a classic mood stabilizer used for acute manic episodes and for maintenance therapy in bipolar disorder. It reduces manic symptoms and helps prevent relapse into mania and depression over time. It is not considered a first-line primary treatment for anxiety, unipolar depression, or schizophrenia, which generally require different medication classes.
Category reason: This question tests knowledge of which condition a specific medication (lithium) is indicated for, which is a core pharmacology concept rather than a nursing intervention or prioritization scenario.

Question 32

Mary received AtropineSO4 as a pre-medication 30 minutes ago and is now complaining of dry mouth and her PR is higher than before the medication was given. The nurse's best?

Accepted Answer

Answer reason: C. This is normal side-effect of ASO4 Atropine is an anticholinergic that commonly causes xerostomia by reducing salivary secretions and increases heart rate by blocking vagal effects on the SA node. These findings are expected therapeutic/adverse effects after premedication dosing and do not by themselves indicate allergy, which would more typically involve rash, wheeze, or hypotension. A higher dose is not indicated based on these predictable effects alone, and anxiety would not specifically explain the classic anticholinergic dry mouth with tachycardia following atropine.
Category reason: This item tests recognition of atropine’s pharmacologic anticholinergic effects and expected adverse effects, which is primarily Pharmacology rather than a nursing intervention/prioritization task.

Question 33

Which test should be performed before giving Imipramine?

Accepted Answer

Answer reason: Imipramine is a tricyclic antidepressant that can slow cardiac conduction and increase risk of arrhythmias (e.g., QRS/QT prolongation), particularly in patients with underlying heart disease. A baseline cardiac assessment is therefore recommended before initiation to identify conduction abnormalities and guide risk–benefit decisions. This is especially important in older adults or anyone with cardiac symptoms/history, and it also provides a reference if toxicity is suspected later.
Category reason: This question tests pre-administration monitoring and adverse cardiac effects of a specific medication (imipramine), which is primarily pharmacology-focused rather than a nursing care prioritization scenario.

Question 34

Benzodiazepine reduce anxiety by acting on which receptor?

Accepted Answer

Answer reason: Benzodiazepines are positive allosteric modulators at the GABA-A receptor, increasing the frequency of chloride channel opening in the presence of GABA. This enhances inhibitory neurotransmission in the CNS, producing anxiolysis (as well as sedation, anticonvulsant, and muscle-relaxant effects). The other listed receptors are not the primary mechanism for benzodiazepine anxiolytic action.
Category reason: This item tests the drug mechanism of action and receptor pharmacodynamics of benzodiazepines, which is core Pharmacology.

Question 35

The drug used to create Aversion in Alcohol Dependence is?

Accepted Answer

Answer reason: It inhibits aldehyde dehydrogenase, so drinking alcohol leads to acetaldehyde accumulation and an unpleasant reaction (flushing, nausea/vomiting, headache, palpitations), producing aversion. Benzodiazepines like diazepam and lorazepam are used for alcohol withdrawal symptom control, not aversion therapy. Dimercaprol is a chelator for heavy metal poisoning and is unrelated to alcohol dependence treatment.
Category reason: This asks which medication produces aversion in alcohol dependence, testing drug mechanism and clinical use, which falls under Pharmacology.

Question 36

Who introduced cocaine in psychiatry.?

Accepted Answer

Answer reason: Sigmund Freud is historically associated with early medical and psychiatric advocacy for cocaine, publishing on its effects in the 1880s and promoting its use for various indications. While later understanding recognized significant harms and addiction risk, his writings are the key reason he is credited in exam contexts with introducing cocaine into psychiatric/medical discussion. The other names listed are not commonly linked to the initial psychiatric introduction of cocaine in standard medical history references.
Category reason: This item tests historical knowledge about a psychoactive drug’s early medical/psychiatric use, which is primarily addressed under Pharmacology rather than nursing care decision-making.

Question 37

A nurse is caring for a client who is in preterm labor and has a new prescription for Nifedipine. The client states she is concerned because her father takes Nifedipine for his angina pectoris. The nurse should explain to the client that Nifedipine works for clients who are pregnant by which of the following mechanisms?

Accepted Answer

Answer reason: Nifedipine is a dihydropyridine calcium channel blocker that reduces transmembrane calcium influx in smooth muscle, including the myometrium. Lower intracellular calcium decreases activation of myosin light-chain kinase, leading to relaxation of uterine smooth muscle and reduced contractions, which is why it can be used as a tocolytic. Beta2 stimulation is the mechanism of drugs like terbutaline, not nifedipine, and CNS suppression or treating bacterial vaginosis are not its primary mechanisms for stopping preterm labor.
Category reason: This question tests the drug mechanism of action of nifedipine as a tocolytic, which is foundational medication knowledge rather than a nursing prioritization/intervention decision, so it best fits Pharmacology.

Question 38

Which medication is commonly used for acute management of status epilepticus?

Accepted Answer

Answer reason: Benzodiazepines are first-line for immediate (acute) termination of status epilepticus because they rapidly enhance GABA-A–mediated inhibition and stop ongoing seizure activity. Diazepam has a fast onset (often given IV/rectal) making it useful in emergent seizure control. Agents like phenytoin are typically used after initial benzodiazepine therapy to prevent recurrence, while carbamazepine and valproic acid are more commonly used for longer-term seizure control rather than immediate abortive treatment.
Category reason: This is primarily a medication-knowledge question about which drug is used acutely in a seizure emergency, which falls under Pharmacology rather than nursing process or patient-care prioritization.

Question 39

Which of the following injectable drugs would be stored in refrigerator?

Accepted Answer

Answer reason: D. Calcitonin-salmon This peptide hormone is temperature sensitive and is typically labeled to be stored refrigerated (about 2–8°C) to maintain potency, and it should not be frozen. Many small-molecule injectable antibiotics (e.g., ciprofloxacin, clindamycin) are generally stored at controlled room temperature until reconstitution/use per product labeling rather than requiring routine refrigeration. Cyanocobalamin injections are commonly stored at room temperature protected from light, not routinely refrigerated. Therefore the option that most clearly requires refrigerator storage is calcitonin-salmon.
Category reason: This item tests medication storage requirements and stability of specific injectable agents, which is a pharmacology-focused knowledge question rather than a nursing judgment/prioritization scenario.

Question 40

Which of the following anaesthetics drug is used for thoracentesis?

Accepted Answer

Answer reason: Thoracentesis typically requires local anesthesia to numb the skin and pleura at the needle insertion site. Procaine is a local anesthetic that can be used for infiltration anesthesia to reduce procedural pain. The other options are systemic sedatives/analgesics (meperidine, diazepam) or a barbiturate and are not the primary anesthetic agent used to locally anesthetize the puncture site for this procedure.
Category reason: This item tests identification of the appropriate drug class (local anesthetic) used for a procedure, which is primarily pharmacology knowledge rather than nursing prioritization or intervention planning.

Question 41

TB drug cause optic neuritis??

Accepted Answer

Answer reason: B. Ethambutol Ethambutol is classically associated with optic neuritis due to dose-related toxicity affecting the optic nerve, leading to decreased visual acuity and red–green color discrimination changes. This adverse effect is a key differentiator among first-line anti-tubercular drugs and is why baseline and periodic visual testing is recommended during therapy. The risk increases with higher doses and renal impairment because the drug is renally cleared.
Category reason: This item tests adverse drug effects of anti-tuberculosis medications, which is primarily pharmacology knowledge rather than nursing prioritization or care management.

Question 42

TB drug association with gout

Accepted Answer

Answer reason: Pyrazinamide can decrease renal excretion of uric acid, leading to hyperuricemia and precipitating gout flares. This adverse effect is well recognized in first-line tuberculosis therapy and warrants monitoring for joint pain and uric acid elevation. Ethambutol can also raise uric acid but is classically less strongly associated with symptomatic gout compared with pyrazinamide. Isoniazid and rifampin are not typical causes of gout.
Category reason: This question tests knowledge of a specific adverse effect associated with an anti-tubercular medication, which is pharmacology-focused rather than a nursing care decision-making scenario.

Question 43

A nursing instructor is preparing a teaching plan for a group of nursing students about pharmacology. When discussing this topic, the instructor would focus the discussion on which of the following as an essential aspect?

Accepted Answer

Answer reason: Pharmacology centrally examines what drugs do in the body (mechanism of action) and what the body does to drugs (pharmacokinetics), which drive indications, therapeutic effects, adverse effects, contraindications, and monitoring. Knowing actions allows clinicians to anticipate expected outcomes and recognize harmful or unexpected responses. Drug names, classes, and sources are useful descriptors, but they are secondary to understanding how a medication produces its effects and risks.
Category reason: This item tests foundational knowledge about the core focus of pharmacology (drug effects and mechanisms), which is a biomedical science topic rather than a patient-care decision or nursing intervention.

Question 44

A client with heart failure is prescribed furosemide (Lasix). The nurse should monitor the client for which electrolyte imbalance?

Accepted Answer

Answer reason: Loop diuretics like furosemide increase urinary excretion of electrolytes by inhibiting sodium reabsorption in the thick ascending limb, which also increases magnesium loss. This places the client at risk for low magnesium, which can contribute to dysrhythmias and neuromuscular irritability. Hyperkalemia is not expected because loop diuretics tend to cause potassium wasting, and hypercalcemia is incorrect because loops increase calcium excretion. While hyponatremia can occur with diuretics, magnesium loss is a more characteristic electrolyte abnormality with loop diuretic therapy among the options provided.
Category reason: This question primarily tests the mechanism and adverse electrolyte effects of a specific medication (furosemide), which is a Pharmacology-focused knowledge question rather than a nursing-care prioritization scenario.

Question 45

A 45-year-old male with a history of hypertension and asthma is started on a new antihypertensive medication. A week later, he develops wheezing and shortness of breath. Which drug is most likely responsible?

Accepted Answer

Answer reason: Nonselective beta-blockade can precipitate bronchospasm by blocking beta-2 receptors in bronchial smooth muscle, which is particularly dangerous in patients with asthma. This can present as new or worsening wheeze and dyspnea after starting therapy. Thiazides and dihydropyridine calcium channel blockers do not typically cause bronchoconstriction, and ACE inhibitors more classically cause cough/angioedema rather than wheezing from bronchospasm.
Category reason: This question tests medication class adverse effects and contraindications (beta-blockers worsening asthma), which is primarily pharmacology knowledge rather than a nursing care prioritization scenario.

Question 46

A 60-year-old male on theophylline for COPD develops nausea, vomiting, and tremors Question: What is the most likely cause?

Accepted Answer

Answer reason: These symptoms are classic for methylxanthine excess, which commonly causes gastrointestinal upset (nausea/vomiting) and CNS stimulation (tremor, agitation). Theophylline has a narrow therapeutic index, so modest increases in serum level (e.g., reduced clearance with age, liver disease, or interacting drugs) can produce toxicity. A therapeutic dose would not typically cause this symptom cluster, and hypersensitivity more often presents with rash, bronchospasm, or anaphylaxis rather than tremor and vomiting. Corticosteroids are not the typical interaction responsible for this toxidrome compared with agents that inhibit theophylline metabolism.
Category reason: This item tests recognition of an adverse drug effect/toxicity pattern from theophylline and its narrow therapeutic index, which is primarily Pharmacology rather than nursing care prioritization.

Question 47

Drug not used in the treatment of H. pylori is?

Accepted Answer

Answer reason: Standard H. pylori eradication regimens use a proton pump inhibitor plus antibiotics such as clarithromycin and/or metronidazole (often with amoxicillin or bismuth, depending on local resistance). The goal is to suppress gastric acid and eliminate the organism with antibacterial therapy. Cisapride is a prokinetic agent formerly used for motility disorders (e.g., GERD/gastroparesis) and does not eradicate H. pylori. It is also largely withdrawn/restricted due to QT prolongation and arrhythmia risk.
Category reason: This item tests knowledge of which medications are included in standard H. pylori eradication regimens, which is primarily pharmacology rather than a nursing intervention or prioritization scenario.

Question 48

A 30-year-old pregnant woman (32 weeks) is diagnosed with severe hypertension. Which antihypertensive is safe and effective in this setting?

Accepted Answer

Answer reason: In pregnancy (including the third trimester), beta-blockade with combined alpha/beta effects is a recommended first-line agent for acute or severe hypertension because it lowers blood pressure effectively without known teratogenic renal effects. ACE inhibitors such as enalapril are contraindicated in the 2nd/3rd trimesters due to risk of fetal renal dysgenesis/oligohydramnios. Spironolactone is avoided because of antiandrogenic effects that can disrupt fetal sexual development. Amlodipine has some use in chronic hypertension, but it is not the preferred first-line choice for severe hypertension compared with labetalol (and nifedipine or hydralazine).
Category reason: This item tests medication selection and pregnancy-related contraindications/first-line antihypertensive choices, which is primarily Pharmacology rather than a nursing intervention/prioritization scenario.

Question 49

Antidote for Cyanide + Nitroprusside toxicity?

Accepted Answer

Answer reason: Nitroprusside can generate cyanide, and accepted antidotal strategies include nitrites (amyl nitrite or sodium nitrite) to induce methemoglobinemia that binds cyanide, plus sodium thiosulfate to enhance conversion to thiocyanate for renal elimination. Hydroxocobalamin directly binds cyanide to form cyanocobalamin, which is also excreted. Because each listed regimen is a recognized antidote approach for cyanide toxicity (including from nitroprusside), the inclusive choice is best.
Category reason: This question tests knowledge of specific antidote drugs and their use in poisoning/toxicity, which is a core Pharmacology concept rather than a nursing-care prioritization scenario.

Question 50

Carbamazepine used to treat

Accepted Answer

Answer reason: B) Epilepsy Carbamazepine is an anticonvulsant used primarily for focal (partial) seizures and generalized tonic-clonic seizures by stabilizing inactivated voltage-gated sodium channels and reducing neuronal firing. It is also used for trigeminal neuralgia and sometimes bipolar disorder, but among the listed choices seizure control is the classic indication. The other options do not represent standard primary indications for this medication.
Category reason: This tests a medication’s therapeutic use/indication, which is core Pharmacology rather than a nursing care decision scenario.

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