Pharmacology Practice Test 40
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 40th 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 40
Which of the following is not a common side effect of cyclophosphamide?
- Hemorrhagic cystitis
- Alopecia
- Peripheral neuropathy
- Myelosuppression
Explanation: Answer reason: Peripheral neuropathy Cyclophosphamide (an alkylating agent) commonly causes myelosuppression, alopecia, and can cause hemorrhagic cystitis due to the urotoxic metabolite acrolein (prevented/mitigated with hydration and mesna). Peripheral neuropathy is classically associated with agents such as vincristine, taxanes, and platinum compounds rather than cyclophosphamide. Therefore, among the listed choices, peripheral neuropathy is not a common adverse effect of cyclophosphamide. Category reason: This item tests knowledge of drug adverse-effect profiles for a chemotherapy agent, which is core Pharmacology rather than nursing care prioritization or safety interventions.
Maximum dose of paracetamol per day?
- 2 grams
- 3 grams
- 4 grams
- 5 grams
Explanation: Answer reason: 4 grams For most adults with normal liver function, the traditional maximum total daily dose of paracetamol (acetaminophen) is 4 g/day (e.g., 1 g every 6 hours). Exceeding this increases risk of dose-dependent hepatotoxicity due to buildup of the toxic metabolite NAPQI when glutathione is depleted. Many guidelines recommend lower limits (e.g., 3 g/day) for chronic use or higher-risk patients, but the standard maximum is 4 g/day. Therefore, among the choices, 4 grams is best. Category reason: This tests a medication maximum daily dose (drug safety/therapeutic limit), which is a core Pharmacology knowledge point rather than a nursing process or prioritization scenario.
Sodium Bicarbonate injection is mainly used in which condition?
- Hyperglycemia
- Metabolic Acidosis
- Hypertension
- Hypothyroidism
Explanation: Answer reason: Metabolic Acidosis Sodium bicarbonate injection is an alkalinizing agent used to buffer excess hydrogen ions and raise serum bicarbonate and pH in clinically significant metabolic acidosis. It is also used in certain emergencies (e.g., some toxin ingestions, severe hyperkalemia, and specific cardiac arrest scenarios) because it can correct acidemia. It is not a primary treatment for hyperglycemia, hypertension, or hypothyroidism, where different pathophysiology and therapies apply. Category reason: This question asks for the primary clinical indication of a medication (sodium bicarbonate injection), which is best classified under Pharmacology rather than a nursing-care decision scenario.
Irreversibly binds to gastric H+/K+ ATPase?
- Amoxicillin
- Paracetamol
- Ondansetron
- Pantoprazole
Explanation: Answer reason: Pantoprazole Pantoprazole is a proton pump inhibitor that irreversibly inhibits the gastric parietal cell H+/K+ ATPase by covalently binding after activation in the acidic canaliculi. This shuts down the final common pathway of acid secretion and the effect lasts until new proton pumps are synthesized. Amoxicillin is an antibiotic, paracetamol is an analgesic/antipyretic, and ondansetron is a 5-HT3 antagonist, none of which target the proton pump. Category reason: This question tests a drug’s mechanism of action (irreversible inhibition of the gastric proton pump), which is a core Pharmacology concept rather than a nursing care/judgment scenario.
Dextromethorphan is used as a?
- Cough suppressant
- Antacid
- Antibiotic
- Painkiller
Explanation: Answer reason: Cough suppressant Dextromethorphan is a centrally acting antitussive that suppresses the cough reflex (commonly used for nonproductive cough). It is not an antacid (which neutralizes gastric acid), not an antibiotic (which treats bacterial infections), and not a painkiller/analgesic. Clinically, patients should be cautioned about potential dizziness and avoiding misuse/overuse, and about interactions with serotonergic drugs (risk of serotonin syndrome). Category reason: This is a drug-identification question asking the therapeutic use of dextromethorphan, which is a pharmacology concept rather than a nursing judgment or care-prioritization scenario.
Which drug is preferred in urinary and genital infections?
- Norfloxacin
- Pefloxacin
- Ofloxacin
- Ciprofloxacin
Explanation: Answer reason: Norfloxacin Norfloxacin is a fluoroquinolone with particularly high urinary concentrations and historically has been used preferentially for uncomplicated urinary tract infections and some genitourinary infections. Compared with other fluoroquinolones listed, it is more “urinary-specific” in clinical use due to its pharmacokinetics and distribution. While ciprofloxacin and ofloxacin are also active in UTIs, they are broader-spectrum and more systemically used rather than being classically preferred specifically for urinary/genital infections. Category reason: This question tests knowledge of which antibiotic is preferred for a specific infection type (urinary/genital), which is core drug selection content in Pharmacology rather than a nursing intervention/prioritization scenario.
The possible side effect after administration of Bupivacaine is...?
- Hypertension
- Bradycardia and hypotension
- Tachycardia
- Hyperthermia
Explanation: Answer reason: Bradycardia and hypotension Bupivacaine is an amide local anesthetic that can cause systemic toxicity if absorbed or inadvertently injected intravascularly, leading to cardiovascular depression. Clinically, this can manifest as hypotension and bradycardia due to reduced myocardial contractility and conduction disturbances. Compared with other local anesthetics, bupivacaine is particularly associated with more severe cardiotoxic effects. The other options are not the classic expected cardiovascular adverse pattern for bupivacaine toxicity. Category reason: This is testing adverse effects of a specific anesthetic medication (bupivacaine), which is a pharmacology concept rather than a nursing judgment/prioritization scenario.
Which vitamin is contraindicated during pregnancy due to its teratogenic effects?
- Vitamin A
- Vitamin C
- Vitamin D
- Vitamin K
Explanation: Answer reason: Vitamin A High-dose vitamin A (especially retinoids like isotretinoin and excess preformed retinol) is teratogenic and can cause congenital malformations, particularly affecting craniofacial, cardiac, and CNS development. Therefore, vitamin A supplementation above recommended prenatal amounts is contraindicated in pregnancy. In contrast, vitamins C, D, and K are not classically teratogenic when used at recommended doses. Category reason: This item tests foundational drug/nutrient safety and teratogenicity knowledge (fat-soluble vitamin toxicity), which aligns best with Pharmacology rather than nursing process or prioritization.
True or False Aspirin is safe for children to treat fever.?
- True
- False
Explanation: Answer reason: False Aspirin is generally not recommended for children and adolescents with viral illnesses because it is associated with Reye syndrome, a rare but potentially fatal encephalopathy with hepatic dysfunction. For fever in children, acetaminophen or ibuprofen are preferred (age-appropriate and with dosing guidance). Aspirin may be used in select pediatric conditions (e.g., Kawasaki disease) under medical supervision, but not as routine fever treatment. Category reason: This item tests medication safety/contraindications in pediatrics (aspirin use and Reye syndrome risk), which is core Pharmacology knowledge rather than a nursing priority/intervention scenario.
What is the main use of Tablet Midodrine?
- To treat fever
- To lower high blood pressure
- As a painkiller
- To treat low blood pressure (hypotension)
Explanation: Answer reason: To treat low blood pressure (hypotension) Midodrine is an oral alpha-1 adrenergic agonist that increases peripheral vascular resistance, thereby raising blood pressure. It is primarily used for symptomatic orthostatic hypotension, especially in patients with autonomic dysfunction. It is not an antipyretic, analgesic, or antihypertensive; in fact, a key risk is supine hypertension. Category reason: This item tests the therapeutic use/indication of a specific medication (midodrine), which is a core Pharmacology concept rather than a nursing judgment scenario.
Which of the following drugs is not used for the treatment of helminth infections?
- Albendazole
- Amoxicillin
- Metronidazole
- Ciprofloxacin
Explanation: Answer reason: Amoxicillin Albendazole is a broad-spectrum anthelmintic commonly used for many helminth infections (e.g., nematodes). Amoxicillin is a beta-lactam antibacterial and has no activity against helminths. Metronidazole and ciprofloxacin are also antimicrobials, but among the options, the best single choice for a drug not used for helminth infections is amoxicillin. Category reason: This item tests drug class and therapeutic indication (anthelmintic vs antibacterial), which is a pharmacology knowledge question rather than a nursing care/intervention scenario.
Which of the following medications is a corticosteroid commonly used to reduce inflammation?
- Montelukast
- Azithromycin
- Dexamethasone
- Paracetamol
Explanation: Answer reason: Dexamethasone Dexamethasone is a synthetic glucocorticoid (corticosteroid) widely used for its potent anti-inflammatory and immunosuppressive effects. Montelukast is a leukotriene receptor antagonist used mainly for asthma/allergic rhinitis, not a steroid. Azithromycin is an antibiotic, and paracetamol is an analgesic/antipyretic with minimal anti-inflammatory activity. Category reason: This item tests identification of a drug class (corticosteroid) among medication options, which is core Pharmacology knowledge rather than a nursing intervention/priority scenario.
Antibiotics are use or administer for purpose;;??
- To relieve pain
- To reduce edema
- To prevent infection
- To relieve fever
Explanation: Answer reason: To prevent infection Antibiotics are antimicrobial drugs used to treat bacterial infections and, in some situations, to prevent bacterial infection (prophylaxis). They do not directly relieve pain, reduce edema, or lower fever—those effects are addressed by analgesics, anti-inflammatory agents, or antipyretics. By inhibiting bacterial growth or killing bacteria, antibiotics help prevent infections from developing or spreading. Category reason: This question tests the primary purpose and therapeutic action of antibiotics, which is core medication knowledge under Pharmacology rather than a nursing judgment or care-prioritization scenario.
Linezolid belongs to which class of antibiotics?
- Macrolides
- Oxazolidinones
- Cephalosporins
- Quinolones
Explanation: Answer reason: B. Oxazolidinones Linezolid is an oxazolidinone antibiotic that inhibits bacterial protein synthesis by binding to the 50S ribosomal subunit and preventing formation of the initiation complex. It is particularly used for resistant gram-positive infections such as MRSA and VRE. The other listed classes (macrolides, cephalosporins, quinolones) have different core structures and mechanisms of action, so they do not match linezolid’s class. Category reason: This is a drug-class identification question focused on antibiotic classification and mechanism, which is core Pharmacology rather than a nursing judgment/action scenario.
True or False: Warfarin requires regular INR monitoring.
- True
- False
Explanation: Answer reason: True Warfarin has a narrow therapeutic index and significant variability due to diet (vitamin K intake), drug interactions, and patient factors, so anticoagulation intensity must be monitored. The INR is used to assess warfarin effect and guide dose adjustments to reduce the risk of bleeding (if INR too high) or thrombosis (if INR too low). Regular INR monitoring is therefore required, especially when starting therapy or when medications/diet change. Category reason: This question tests knowledge of warfarin pharmacologic monitoring and therapeutic drug management, which is primarily Pharmacology rather than a nursing care-priority scenario.
True or False: Heparin and warfarin can be given together.?
- True
- False
Explanation: Answer reason: True Heparin and warfarin are often overlapped (“bridged”) when initiating warfarin therapy because warfarin has a delayed onset and can transiently increase hypercoagulability early on (via protein C/S reduction). Heparin provides immediate anticoagulation while warfarin takes effect, and heparin is continued until the INR is therapeutic (commonly for at least 5 days and until INR is in range for ~24 hours). Although concomitant use increases bleeding risk, it is an accepted, standard practice with appropriate monitoring. Category reason: This item tests foundational medication knowledge about anticoagulants and the rationale for heparin–warfarin overlap (bridging), which is primarily a Pharmacology concept rather than a nursing prioritization or care-management scenario.
True or False: Opioids can cause respiratory depression.?
- True
- False
Explanation: Answer reason: True Opioids depress the medullary respiratory center and reduce responsiveness to rising CO2, leading to slowed, shallow breathing. This effect is dose-dependent and is a major cause of morbidity and mortality in overdose. Risk is increased with concomitant CNS depressants (e.g., benzodiazepines, alcohol), sleep apnea, and opioid-naïve patients. Naloxone can reverse opioid-induced respiratory depression by antagonizing opioid receptors. Category reason: This item tests a core medication effect/adverse effect (opioid-induced respiratory depression), which is primarily pharmacologic knowledge rather than a nursing action scenario.
Which of these medications is an antibiotic?
- Amoxicillin
- Losartan
- Clonazepam
Explanation: Answer reason: Amoxicillin Amoxicillin is a beta-lactam (penicillin-class) antibiotic used to treat susceptible bacterial infections. Losartan is an angiotensin II receptor blocker (ARB) used for hypertension and other cardiovascular indications, not an antimicrobial. Clonazepam is a benzodiazepine used for seizure disorders and anxiety, also not an antibiotic. Category reason: This item tests recognition of drug classes and therapeutic use (antibiotic vs antihypertensive vs benzodiazepine), which is core Pharmacology knowledge rather than a nursing care decision scenario.
Anti-Ulcer Drugs Safe in Pregnancy
- Gaviscon
- R- Ranitidine
- L- Lansoprazole
- S- Sucralfate
Explanation: Answer reason: Sucralfate is minimally absorbed systemically and is considered safe during pregnancy. Category reason: The question evaluates medication safety in pregnancy.
Case: A 45-year-old male presents with epigastric pain that worsens at night and improves with meals. He has been taking NSAIDs for chronic back pain for the past year. A urea breath test is positive. Question: What is the most appropriate initial pharmacological treatment for this patient?
- Omeprazole and clarithromycin
- Ranitidine and metronidazole
- Omeprazole, amoxicillin, and clarithromycin
- Sucralfate and metronidazole
Explanation: Answer reason: Omeprazole, amoxicillin, and clarithromycin A positive urea breath test indicates H. pylori infection, for which standard initial therapy is triple therapy with a proton pump inhibitor plus two antibiotics. Omeprazole reduces gastric acid and enhances ulcer healing while improving antibiotic efficacy against H. pylori. Regimens missing a second antibiotic (or using nonstandard combinations like sucralfate + metronidazole) are inadequate for eradication and have higher failure rates. Category reason: This question tests knowledge of the evidence-based drug regimen used to eradicate H. pylori (PPI plus antibiotics), which is primarily pharmacologic treatment selection rather than nursing prioritization or bedside care.
Which is not the function of nitroglycerin?
- Increase venous capacitance
- Decrease intramyocardial tension
- Decrease afterload
- Decrease cardiac output
Explanation: Answer reason: Decrease cardiac output Nitroglycerin is a nitrate that primarily causes venodilation, increasing venous capacitance and reducing preload, which lowers wall stress (intramyocardial tension) and myocardial oxygen demand. At higher doses it can also dilate arterial vessels and reduce afterload. It is not used with the primary therapeutic goal of decreasing cardiac output; in many patients CO is maintained or may improve as myocardial ischemia decreases. Category reason: This question tests the mechanism and hemodynamic effects of a specific drug (nitroglycerin), which is core Pharmacology knowledge rather than a nursing action/prioritization scenario.
What is the usual adult dose in cardiac arrest?
- 0.5 mEq/kg
- 1 mEq/kg
- 5 mEq/kg
- 10 mEq/kg
Explanation: Answer reason: 1 mEq/kg This question refers to sodium bicarbonate injection (as shown) and asks the usual adult dosing used during cardiac arrest scenarios when indicated. Standard emergency dosing for sodium bicarbonate is commonly taught as 1 mEq/kg IV bolus (often repeated at 0.5 mEq/kg based on ABGs/clinical context). Higher doses like 5–10 mEq/kg are not standard and raise risk for alkalosis, hypernatremia, and CO2 generation worsening intracellular acidosis. Therefore, 1 mEq/kg is the best answer among the choices. Category reason: This is primarily a medication dosing question (sodium bicarbonate dose), which is a core Pharmacology topic rather than nursing prioritization or a care-planning scenario.
True or False: Epinephrine is the first-line drug in anaphylaxis.?
- True
- False
Explanation: Answer reason: True Epinephrine is the first-line treatment for anaphylaxis because it rapidly reverses airway edema/bronchospasm (beta-2 effects) and hypotension/vasodilation (alpha-1 effects). Early intramuscular administration (typically in the mid-anterolateral thigh) is associated with improved outcomes. Other therapies such as antihistamines and corticosteroids are adjuncts and do not replace epinephrine for initial management. Category reason: This item tests knowledge of the indicated drug therapy for a medical emergency (anaphylaxis), which is primarily pharmacologic management rather than a nursing process/prioritization scenario.
A mother gave a drug to her premature newly born child.he turns to cyanotic.drug most likely was
- Clindamycin
- Sulfonamide
- Chloramphenicol
- Aminoglycoside
Explanation: Answer reason: Chloramphenicol In premature neonates, chloramphenicol can cause “gray baby syndrome” due to immature hepatic glucuronidation, leading to drug accumulation. Clinical features include ashen-gray discoloration, cyanosis, hypothermia, vomiting, hypotension, and cardiovascular collapse. This toxicity is classically associated with chloramphenicol use in newborns, especially preterm infants. The other options have different hallmark neonatal risks (e.g., sulfonamides → kernicterus risk) rather than prominent cyanosis/gray baby presentation. Category reason: This item tests adverse drug effects and neonatal drug metabolism/toxicity, which is core Pharmacology knowledge rather than a nursing-care prioritization scenario.
Fastest route of drug absorption is ......?
- Oral Route
- I/V Route
- Transdermal Route
- Sub Lingual Route
Explanation: Answer reason: I/V Route Intravenous administration delivers the drug directly into the systemic circulation, bypassing absorption barriers (skin, mucosa, GI tract) and first-pass metabolism. Therefore onset is essentially immediate and bioavailability is 100%. Oral and transdermal routes are slower due to dissolution, membrane permeation, and/or delayed release. Sublingual can be rapid but is still slower than direct IV delivery. Category reason: This item tests knowledge of drug administration routes and relative speed of onset/bioavailability, which is a core Pharmacology concept rather than a nursing judgment scenario.
Following Syrup is used for?
- Diarrhea
- Allergies
- Headache
- Dyspepsia
Explanation: Answer reason: Allergies Piriton is a brand of chlorpheniramine maleate, a first-generation H1 antihistamine used to relieve symptoms of allergic conditions such as allergic rhinitis, urticaria, and itching. It reduces histamine-mediated sneezing, rhinorrhea, watery eyes, and pruritus. It is not a treatment for diarrhea, headache, or dyspepsia, and may cause sedation and anticholinergic effects as common adverse effects. Category reason: This question asks the therapeutic use of a specific medication brand (Piriton/chlorpheniramine), which is primarily drug knowledge and belongs to Pharmacology.
Omeprazole is therapeutically used in the treatment of?
- Peptic ulcer disease
- Hypertension
- Tuberculosis
- Malaria
Explanation: Answer reason: Peptic ulcer disease Omeprazole is a proton pump inhibitor (PPI) that irreversibly inhibits the gastric H+/K+ ATPase in parietal cells, leading to marked suppression of gastric acid secretion. This promotes healing of acid-related mucosal injury such as peptic ulcers and is also used in GERD and as part of H. pylori eradication regimens. It is not a treatment for hypertension, tuberculosis, or malaria, which require antihypertensives, anti-TB drugs, and antimalarials respectively. Category reason: This item tests knowledge of a drug’s therapeutic use and mechanism/class indication, which is pharmacology rather than a nursing care priority scenario.
Which of the following medications is commonly prescribed for depression?
- Lithium
- Clozapine
- Fluoxetine
- Risperidone
Explanation: Answer reason: Fluoxetine Fluoxetine is an SSRI antidepressant commonly prescribed for major depressive disorder. Lithium is primarily a mood stabilizer used for bipolar disorder, not first-line for unipolar depression. Clozapine and risperidone are antipsychotics mainly used for schizophrenia/psychotic disorders; while they may be used as adjuncts in certain cases, they are not the commonly prescribed primary medications for depression. Category reason: This question tests knowledge of which drug class/agent is commonly used to treat depression, which is core medication-class identification and thus Pharmacology.
A patient presented to the clinic requiring antibiotic therapy. The doctor planned to prescribe a penicillin-based drug, but the patient reported a history of allergic reaction to penicillin. Which of the following classes of antibiotics is the patient most likely to also be allergic to?
- Macrolides
- Aminoglycosides
- Tetracyclines
- Cephalosporins
Explanation: Answer reason: Cephalosporins Penicillins and cephalosporins are both beta-lactam antibiotics and can share similar antigenic determinants, creating potential cross-reactivity in patients with true penicillin allergy. Although the overall risk is lower than historically reported and depends on the specific agent/side-chain similarity, cephalosporins remain the best choice among the listed classes for likely cross-allergy. Macrolides, aminoglycosides, and tetracyclines are structurally unrelated and therefore are less likely to cross-react immunologically with penicillin. Category reason: This question tests knowledge of antibiotic drug classes and cross-reactivity in allergies, which is a pharmacology concept rather than a nursing intervention/prioritization scenario.
Which syrup is commonly used for dry cough?
- Ascoril LS
- Grilinctus
- Corex-D
- Benadryl
Explanation: Answer reason: Grilinctus Grilinctus is commonly used for dry (non-productive) cough because it contains antitussive agents that suppress the cough reflex. In contrast, Ascoril LS is primarily an expectorant/mucolytic combination used for productive cough with sputum. Corex-D is typically used for cough/cold symptoms and may be more suited when congestion is present rather than as a standard choice for dry cough. Benadryl (diphenhydramine) is an antihistamine that may reduce allergy-related cough but is not the commonly preferred “dry cough syrup” option compared with antitussive syrups. Category reason: This is primarily testing knowledge of which medication/syrup is used for a specific symptom (dry cough), which is a pharmacology-focused recall question rather than a nursing care decision.
For anaerobic bacteria in perinephric abscess, which antibiotic should be part of the regimen?
- Metronidazole
- Nitrofurantoin
- Ciprofloxacin
- Doxycycline
Explanation: Answer reason: Metronidazole Perinephric abscess regimens need anaerobic coverage in addition to gram-negative coverage, and metronidazole is a reliable agent against obligate anaerobes (e.g., Bacteroides species). Nitrofurantoin is limited to uncomplicated lower UTIs and does not adequately treat deep tissue/renal abscesses. Ciprofloxacin has limited anaerobic activity, and doxycycline is not dependable for anaerobes, making them inferior choices when anaerobic coverage is specifically required. Category reason: This question tests knowledge of antibiotic spectrum and appropriate drug selection for anaerobic organisms, which is a core Pharmacology concept rather than a nursing care intervention scenario.
Drug of choice for anaphylaxis is?
- Adrenaline
- Hydrocortisone
- Atropine
- Dopamine
Explanation: Answer reason: Adrenaline Epinephrine (adrenaline) is the first-line, life-saving treatment for anaphylaxis because it rapidly reverses airway edema and bronchospasm (beta-2 effects) and treats hypotension/shock via vasoconstriction (alpha-1 effects). It also reduces further mediator release from mast cells and basophils. Hydrocortisone is an adjunct with delayed onset, and atropine/dopamine are not primary therapies for anaphylaxis. Category reason: This item tests the pharmacologic first-line agent for anaphylaxis (drug of choice), which is core Pharmacology knowledge rather than a nursing process/prioritization scenario.
True or False: Tetracycline should be taken with milk to reduce gastric upset.?
- True
- False
Explanation: Answer reason: False Tetracyclines chelate with divalent/trivalent cations such as calcium, magnesium, iron, and aluminum, which reduces drug absorption. Milk and other dairy products contain calcium, so taking tetracycline with milk can significantly decrease its effectiveness. To minimize this interaction, tetracycline is typically taken with a full glass of water and separated from dairy/antacids/iron by a few hours; mild GI upset can be managed with food if specifically allowed, but not with dairy. Category reason: This item tests medication administration interactions (calcium in milk reducing tetracycline absorption), which is a core Pharmacology concept rather than a nursing judgment scenario.
Best OTC drug for fever in adults?
- Aspirin
- Paracetamol
- Caffeine
- Diphenhydramine
Explanation: Answer reason: Paracetamol Paracetamol (acetaminophen) is an effective OTC antipyretic for adults and is commonly recommended as first-line for fever because it has minimal gastrointestinal irritation and bleeding risk compared with aspirin. Caffeine is not an antipyretic, and diphenhydramine is an antihistamine mainly used for allergies/sedation. Aspirin can reduce fever but carries higher risks (e.g., GI bleeding) and is generally not the preferred “best” OTC antipyretic for routine adult fever. Category reason: This item tests knowledge of drug selection and therapeutic use (antipyretics) rather than a nursing process decision in a patient-care scenario, so it fits Pharmacology.
Which beta blocker is preferred in patients with asthma?
- Propranolol
- Atenolol
- Carvedilol
- Nadolol
Explanation: Answer reason: Atenolol In patients with asthma, beta-1 selective (cardioselective) beta blockers are preferred because they have less blockade of beta-2 receptors in bronchial smooth muscle, reducing the risk of bronchospasm. Atenolol is relatively beta-1 selective compared with nonselective agents. Propranolol and nadolol are nonselective and can precipitate bronchoconstriction, and carvedilol blocks beta receptors (and alpha-1) and is not preferred in asthma. Category reason: This question tests drug selection based on receptor selectivity and adverse-effect risk (bronchospasm) in asthma, which is core Pharmacology knowledge.
A 64-year-old man with hypertension, stable angina, and a history of well-controlled asthma is being started on a beta-blocker. Which of the following is the most appropriate option?
- Propranolol
- Metoprolol
- Carvedilol
- Atenolol
Explanation: Answer reason: Metoprolol In patients with asthma, a cardioselective (beta-1 selective) beta-blocker is preferred to reduce the risk of bronchospasm from beta-2 blockade. Metoprolol is beta-1 selective and is appropriate for treating both hypertension and stable angina. Propranolol is nonselective and more likely to precipitate bronchoconstriction, and carvedilol (beta + alpha blocker) is also nonselective at beta receptors. Atenolol is also beta-1 selective, but metoprolol is commonly preferred clinically (including better CNS penetration/shorter half-life for titration depending on formulation). Category reason: This item tests selection of the safest/most appropriate beta-blocker based on receptor selectivity and comorbid asthma, which is core drug-class knowledge in Pharmacology rather than a nursing care prioritization scenario.
Which drug is mainly used to reduce fever and mild to moderate pain?
- Diazepam
- Paracetamol
- Furosemide
Explanation: Answer reason: Paracetamol Paracetamol (acetaminophen) is an analgesic and antipyretic commonly used to treat fever and mild to moderate pain. Diazepam is a benzodiazepine used for anxiety, muscle spasm, and seizures, not for antipyresis/analgesia. Furosemide is a loop diuretic used for edema and hypertension, not for pain or fever control. Category reason: This item tests knowledge of drug indications (analgesic/antipyretic vs anxiolytic vs diuretic), which is primarily Pharmacology.
True or False Patients taking digoxin should increase their potassium intake.?
- True
- False
Explanation: Answer reason: True Hypokalemia increases myocardial sensitivity to digoxin and raises the risk of digoxin toxicity (e.g., dysrhythmias). Maintaining adequate potassium intake helps reduce toxicity risk, especially if the patient is also taking potassium-wasting diuretics. This guidance assumes potassium is not contraindicated (e.g., significant renal failure or concurrent potassium-sparing drugs), so potassium levels should be monitored. Category reason: This item tests drug–electrolyte interaction and toxicity risk with digoxin, which is primarily Pharmacology knowledge rather than a nursing prioritization/intervention scenario.
True or False: Calcium channel blockers should be avoided in patients with heart failure.?
- True
- False
Explanation: Answer reason: True Non-dihydropyridine calcium channel blockers (e.g., verapamil, diltiazem) have negative inotropic effects and can worsen systolic (HFrEF) heart failure, so they are generally avoided in HF with reduced ejection fraction. Some dihydropyridines (e.g., amlodipine) are relatively safer in HFrEF, but they do not improve outcomes and are used mainly if needed for hypertension/angina. As a general test statement, “avoid calcium channel blockers in heart failure” is considered true because of the clinically important risk with non-dihydropyridines. Category reason: This item tests medication class effects and contraindications in heart failure (negative inotropy), which is a foundational Pharmacology concept rather than a nursing process/intervention scenario.
Qn. What is the mechanism of action of Olanzapine?
- Inhibits serotonin and dopamine receptors.
- Increases norepinephrine release.
- Blocks sodium channels.
- Stimulates GABA receptors.
Explanation: Answer reason: Inhibits serotonin and dopamine receptors. Olanzapine is an atypical antipsychotic that primarily antagonizes dopamine D2 receptors and serotonin 5-HT2A receptors, helping reduce psychotic symptoms and stabilize mood. Its combined serotonin-dopamine receptor blockade distinguishes it from many typical antipsychotics that are more purely dopamine antagonists. The other options describe mechanisms more consistent with certain antidepressants/stimulants (norepinephrine release), local anesthetics/antiarrhythmics (sodium-channel blockade), or benzodiazepines/barbiturates (GABA receptor effects). Category reason: This is a foundational drug-mechanism question about how olanzapine works at neurotransmitter receptors, which is pharmacology rather than a nursing judgment/intervention scenario.
Which of these drugs is anti-diabetic?
- Metformin
- Furosemide
- Digoxin
Explanation: Answer reason: Metformin Metformin is an oral antidiabetic medication (a biguanide) used primarily for type 2 diabetes mellitus to lower blood glucose by decreasing hepatic gluconeogenesis and improving insulin sensitivity. Furosemide is a loop diuretic used for edema and hypertension, not for glycemic control. Digoxin is a cardiac glycoside used mainly in heart failure and certain arrhythmias, not diabetes management. Category reason: This question tests identification of a medication class and its therapeutic use, which is core Pharmacology rather than nursing care prioritization or interventions.
A 75-year-old man with longstanding hypertension develops new-onset ankle edema, hypertrichosis, and pericardial effusion. Which drug is most likely responsible?
- Hydralazine
- Minoxidil
- Labetalol
- Methyldopa
Explanation: Answer reason: Minoxidil Minoxidil (a K+ channel opener arteriolar vasodilator) classically causes hypertrichosis and significant fluid retention leading to peripheral edema. It can also cause serosal fluid accumulation, including pericardial effusion (a rare but recognized adverse effect), often related to marked salt/water retention. Hydralazine is more associated with drug-induced lupus, methyldopa with hemolytic anemia/hepatotoxicity, and labetalol with bradycardia/bronchospasm rather than hypertrichosis. Category reason: This question tests recognition of characteristic adverse effects of specific antihypertensive medications, which is primarily pharmacology knowledge rather than nursing process/intervention decision-making.
Which of the following pain medications is the safest for a patient with a history of peptic ulcer?
- Celecoxib
- Diclofenac Potassium
- Ibuprofen
- Piroxicam
Explanation: Answer reason: Celecoxib Celecoxib is a COX-2 selective NSAID, which generally causes less gastric mucosal injury and a lower risk of peptic ulceration/upper GI bleeding than nonselective NSAIDs. Diclofenac, ibuprofen, and piroxicam are nonselective NSAIDs that inhibit COX-1, reducing protective gastric prostaglandins and increasing ulcer/bleeding risk. While celecoxib is not risk-free (especially with prior ulcer or with anticoagulants), among these choices it is the safest for a patient with a peptic ulcer history. Category reason: This item tests comparative adverse-effect profiles and safety of NSAIDs (COX-2 selective vs nonselective) in the context of peptic ulcer disease, which is a Pharmacology concept.
The following is a first generation cephalosporin-?
- Cefuroxime
- Ceftazidime
- Cefadroxil
- Ceftriaxone
Explanation: Answer reason: Cefadroxil Cefadroxil is a first-generation cephalosporin (along with agents like cephalexin and cefazolin), characterized by stronger activity against gram-positive organisms and limited gram-negative coverage. Cefuroxime is a second-generation cephalosporin. Ceftazidime and ceftriaxone are third-generation cephalosporins (ceftazidime notably has Pseudomonas coverage). Category reason: This item tests classification of antibiotics by cephalosporin generation, which is core drug knowledge within Pharmacology rather than a nursing intervention or prioritization scenario.
Best uterine relaxation is seen with?
- Volatile anesthetic agents
- Beta-agonists
- Calcium channel blockers
- Magnesium sulfate
Explanation: Answer reason: Volatile anesthetic agents Volatile inhalational anesthetics (e.g., halothane, sevoflurane, isoflurane) produce dose-dependent uterine smooth muscle relaxation, and high concentrations can markedly reduce uterine tone. This effect is clinically used to facilitate uterine relaxation in certain obstetric emergencies or procedures (e.g., uterine inversion, difficult extraction). Beta-agonists, calcium channel blockers, and magnesium sulfate can have tocolytic effects, but generally do not provide as profound and immediate uterine relaxation as potent volatile agents. Category reason: This is testing comparative drug effects on uterine smooth muscle tone and tocolysis, which is a medication mechanism/clinical pharmacology concept rather than a nursing-care prioritization scenario.
Which condition is Loperamide mainly used to treat?
- Constipation
- Diarrhea
- Asthma
- Rchomatogenciol
Explanation: Answer reason: Diarrhea Loperamide is an antidiarrheal opioid receptor agonist that acts primarily in the gut to decrease intestinal motility and increase absorption of fluids and electrolytes. This reduces stool frequency and improves stool consistency in acute nonspecific diarrhea and some chronic diarrheal states. It is not used for constipation and has no role in treating asthma; the option “Rchomatogenciol” is not a recognized medical condition. Category reason: This item tests the indication and basic therapeutic use of a medication (loperamide), which is a core pharmacology concept rather than a nursing care decision.
Which drug class ends with "pril"(e.g.,lisinopril )?
- Beta-blockers
- Diuretics
- ACE inhibitors
- Calcium channel blockers
Explanation: Answer reason: ACE inhibitors Drugs ending in the suffix “-pril” (e.g., lisinopril, enalapril, captopril) are angiotensin-converting enzyme (ACE) inhibitors. They lower blood pressure by decreasing conversion of angiotensin I to angiotensin II, reducing vasoconstriction and aldosterone effects. This suffix is a standard pharmacologic naming pattern used to identify the medication class. Category reason: This question tests recognition of medication class by name suffix (“-pril”), which is core pharmacology knowledge rather than a nursing intervention or care-prioritization scenario.
Which of the following is used as an anti-hypertensive?
- Penicillin
- Aspirin
- Enalapril
- Ifosfamide
Explanation: Answer reason: Enalapril Enalapril is an ACE inhibitor used to treat hypertension by decreasing angiotensin II formation, leading to vasodilation and reduced aldosterone-mediated sodium/water retention. Penicillin is an antibiotic, aspirin is an antiplatelet/NSAID (not a primary antihypertensive), and ifosfamide is an alkylating chemotherapy agent. Therefore, enalapril is the antihypertensive among the options. Category reason: This item tests recognition of a medication class and its therapeutic use (antihypertensive), which is primarily a pharmacology knowledge question rather than a nursing intervention/prioritization scenario.
Which of the following is commonly used to manage Parkinson’s disease symptoms?
- Levodopa
- Ibuprofen
- Metformin
Explanation: Answer reason: Levodopa Parkinson’s disease symptoms are primarily due to loss of dopaminergic neurons in the substantia nigra, leading to dopamine deficiency in the basal ganglia. This medication is a dopamine precursor that crosses the blood–brain barrier and is converted to dopamine in the CNS, improving bradykinesia and rigidity. The other options are for pain/inflammation (NSAID) and type 2 diabetes (insulin sensitizer), not for restoring dopaminergic signaling. Category reason: This is a medication-identification question about which drug is used to treat a specific neurologic disorder, which is primarily Pharmacology rather than nursing intervention/priority-setting.
Antimicrobial dressing composed of which of the following metal?
- Copper
- Zinc
- Sodium
- Silver
Explanation: Answer reason: Silver Silver-impregnated dressings release silver ions that have broad-spectrum antimicrobial activity against bacteria (including resistant organisms) and some fungi by disrupting cell membranes and interfering with enzymes/DNA. They are commonly used for burns, ulcers, and wounds at high risk of infection to reduce bioburden. Other listed metals are not the standard active antimicrobial component of commonly referenced antimicrobial wound dressings in nursing practice. Category reason: This item tests knowledge of a commonly used antimicrobial wound dressing component (silver-impregnated dressings), which aligns best with Pharmacology-focused content on antimicrobial agents and their clinical use.
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