Question 1

Budesonide used in?

Accepted Answer

Answer reason: Budesonide is a corticosteroid with anti-inflammatory effects used in multiple formulations. Inhaled budesonide is a controller medication for asthma. Topical corticosteroid preparations (including budesonide in certain formulations) are used for inflammatory dermatoses such as dermatitis and can be used in steroid-responsive skin conditions like psoriasis, so the best choice is that it is used in all listed conditions.
Category reason: The item asks about the therapeutic uses of a specific drug (budesonide), which is a core pharmacology question rather than a nursing care/prioritization scenario.

Question 2

What is Dextrose 5% used for?

Accepted Answer

Answer reason: Dextrose 5% (D5W) provides free water plus glucose calories; the dextrose is rapidly metabolized, leaving effectively hypotonic water. Its key use is to provide a source of carbohydrate and can help correct or prevent hypoglycemia when glucose supplementation is needed. It is not used to treat hyponatremia (it can worsen low sodium by adding free water), and it is not a primary therapy for fever. For dehydration, isotonic fluids such as 0.9% normal saline or lactated Ringer’s are typically preferred for initial volume repletion.
Category reason: The question tests knowledge of an IV solution’s composition and clinical indications/contraindications, which is foundational medication/IV fluid knowledge within Pharmacology rather than a nursing judgment scenario.

Question 3

Use ? N-Acetylcysteine Tablets 600mg.

Accepted Answer

Answer reason: N-acetylcysteine (NAC) is used as an antidote in acetaminophen (paracetamol) overdose by replenishing hepatic glutathione and limiting toxic metabolite–induced liver injury. It is also a mucolytic that reduces mucus viscosity by breaking disulfide bonds in mucoproteins, helping indicates like thick respiratory secretions. It is not primarily classified or used clinically as an anti-inflammatory drug in standard MCQ context, so “All the above” is not the best choice.
Category reason: This item tests the therapeutic uses of a specific medication (N-acetylcysteine), which is a core pharmacology concept rather than nursing prioritization or a patient-care action decision.

Question 4

Ectopic pregnancy is treated with.........?

Accepted Answer

Answer reason: For a stable, unruptured ectopic pregnancy, medical management commonly uses methotrexate, a folate antagonist that stops trophoblastic cell proliferation and leads to resorption of the ectopic gestation. Normal saline is supportive fluid therapy and does not treat the pregnancy itself. Prostaglandins and oxytocin are uterotonics used to induce uterine contractions in intrauterine pregnancy contexts, not to resolve a tubal ectopic implantation. Therefore methotrexate is the best answer among the options.
Category reason: The question tests the drug used to medically manage ectopic pregnancy, which is primarily a medication/therapeutics knowledge point rather than a nursing care intervention scenario, fitting Pharmacology.

Question 5

Which drug is used to reduce fever?

Accepted Answer

Answer reason: Paracetamol (acetaminophen) is a first-line antipyretic used to reduce fever by lowering the hypothalamic set point via central prostaglandin inhibition. Ibuprofen is also an antipyretic, but the question asks for a single best answer and paracetamol is commonly the standard choice due to broad use and generally favorable GI safety compared with NSAIDs. Atorvastatin treats hyperlipidemia, and ranitidine is an H2-receptor antagonist used for acid-related disorders, not fever reduction.
Category reason: This item tests identification of a medication used for a specific therapeutic effect (antipyresis), which is a core Pharmacology concept rather than a nursing care/prioritization scenario.

Question 6

Ethinyl estradiol taken with St. John's Wort supplements can cause what drug-herb interaction?

Accepted Answer

Answer reason: St. John's wort induces hepatic CYP enzymes (notably CYP3A4) and P-glycoprotein, increasing metabolism and lowering serum levels of ethinyl estradiol. This can lead to breakthrough bleeding and unintended pregnancy due to decreased hormonal exposure. The other options do not represent the classic, clinically significant interaction between St. John's wort and combined oral contraceptives.
Category reason: The question tests knowledge of a specific drug–herb interaction affecting pharmacokinetics and therapeutic efficacy, which is primarily Pharmacology rather than nursing care prioritization or safety actions.

Question 7

How much elemental iron is present in 300mg of ferrous fumarate?

Accepted Answer

Answer reason: Ferrous fumarate contains about 33% elemental iron by weight. Therefore, 300 mg of ferrous fumarate provides approximately 0.33 × 300 mg = 99 mg of elemental iron. The other options do not match the standard elemental iron fraction for ferrous fumarate and would overestimate or underestimate the delivered iron dose.
Category reason: This item tests knowledge of drug salt formulations and conversion to elemental iron content, which is a core pharmacology competency rather than a nursing care/intervention judgment.

Question 8

Urological Pharmacology: Which diuretics are potassium wasters?

Accepted Answer

Answer reason: Potassium-wasting diuretics increase urinary potassium excretion and can cause hypokalemia. Loop diuretics (e.g., furosemide) inhibit the Na-K-2Cl cotransporter in the thick ascending limb, increasing sodium delivery to the distal nephron and promoting potassium loss. Thiazide diuretics also tend to be potassium-wasting, but if a single best answer is required, loop diuretics are classically emphasized as strongly potassium-wasting and are a common cause of significant hypokalemia.
Category reason: This question tests drug class effects and electrolyte consequences of diuretics, which is foundational medication knowledge rather than a nursing care prioritization or intervention scenario; therefore it fits Pharmacology under NursingScience.

Question 9

RL (Ringer Lactate) is avoided in which condition?

Accepted Answer

Answer reason: Lactated Ringer’s contains sodium lactate, which is metabolized primarily by the liver into bicarbonate. In liver failure, impaired lactate metabolism can lead to lactate accumulation and reduced buffering benefit, potentially worsening acid–base status. Therefore RL is generally avoided or used cautiously in significant hepatic dysfunction. The other options (dehydration, fever, vomiting) are common situations where isotonic crystalloids like RL may be appropriate depending on the clinical context.
Category reason: This item tests knowledge of an IV fluid’s composition, metabolism, and contraindications/precautions (how lactate in RL is handled in hepatic impairment), which is primarily Pharmacology/foundational therapeutics rather than nursing judgment or prioritization.

Question 10

"Red man syndrome" is caused by?

Accepted Answer

Answer reason: Red man syndrome is a well-known infusion-related reaction to vancomycin, caused by non–IgE-mediated histamine release, especially with rapid IV administration. It typically presents with flushing/erythema of the face, neck, and upper torso, and may include pruritus and hypotension. Slowing the infusion rate and giving antihistamines can prevent or reduce symptoms. The other listed antibiotics are not classically associated with this specific syndrome.
Category reason: The item tests a classic adverse drug reaction associated with a specific antibiotic, which is core medication knowledge under Pharmacology rather than a nursing care prioritization scenario.

Question 11

Q. Anti hypertensive drugs is?

Accepted Answer

Answer reason: Losartan is an angiotensin II receptor blocker (ARB) used to treat hypertension by reducing angiotensin II–mediated vasoconstriction and aldosterone effects. Captopril is also an antihypertensive (an ACE inhibitor), but the question asks for a single best answer and losartan is clearly a prototypical antihypertensive choice. Cefritaxime is a cephalosporin antibiotic, not used for blood pressure control. Therefore, "Losartan" is a correct antihypertensive drug option.
Category reason: This item tests recognition of drug classes/indications (antihypertensive medications), which is core Pharmacology rather than a nursing-care decision scenario.

Question 12

Warfarin + NSAIDs increases the risk of:

Accepted Answer

Answer reason: Warfarin is an anticoagulant that increases bleeding risk by inhibiting vitamin K–dependent clotting factors. NSAIDs (especially nonselective agents like ibuprofen/naproxen) inhibit platelet function and can damage gastric mucosa, increasing GI bleeding risk. Using them together produces additive hemostatic impairment and raises the likelihood of serious bleeding events. Therefore, the best answer is bleeding.
Category reason: This question tests a drug–drug interaction and its adverse clinical outcome (warfarin with NSAIDs), which is primarily pharmacology knowledge rather than a nursing care prioritization scenario.

Question 13

Which drug can cause yellow vision?

Accepted Answer

Answer reason: Digoxin toxicity classically causes visual disturbances, especially xanthopsia (yellow vision) and halos around lights. These effects are related to digoxin’s action on Na+/K+-ATPase and CNS/retinal effects when serum levels are elevated. In contrast, amlodipine, atorvastatin, and metoprolol do not characteristically cause yellow vision as a hallmark adverse effect. Therefore, digoxin is the best answer.
Category reason: This is primarily testing recognition of a characteristic adverse drug effect (xanthopsia) and linking it to a specific medication, which is a Pharmacology knowledge task rather than a nursing intervention scenario.

Question 14

A patient with chronic kidney disease is prescribed calcium acetate. What is the primary purpose of this medication?

Accepted Answer

Answer reason: Calcium acetate is a phosphate binder used in chronic kidney disease to reduce intestinal absorption of dietary phosphate and lower serum phosphorus levels. It works by binding phosphate in the GI tract, forming insoluble complexes excreted in stool. This helps manage hyperphosphatemia and reduces complications such as secondary hyperparathyroidism and renal osteodystrophy. It is not primarily used to treat hyperkalemia, and it can increase (not decrease) serum calcium.
Category reason: This question tests the mechanism and therapeutic purpose of a specific medication (calcium acetate) used in CKD, which is primarily pharmacology knowledge rather than a nursing care prioritization/intervention scenario.

Question 15

Inhibits COX?

Accepted Answer

Answer reason: Paracetamol (acetaminophen) produces analgesic and antipyretic effects primarily through inhibition of cyclooxygenase (COX) activity in the central nervous system, reducing prostaglandin synthesis. In contrast, amoxicillin is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis, ondansetron is a 5-HT3 receptor antagonist antiemetic, and pantoprazole is a proton pump inhibitor that blocks gastric H+/K+ ATPase. Therefore, paracetamol is the only option that acts via COX inhibition.
Category reason: The question tests a drug’s mechanism of action (COX inhibition), which is a core Pharmacology concept rather than a nursing care decision or prioritization task.

Question 16

Binds to PBP?

Accepted Answer

Answer reason: Penicillin-binding proteins (PBPs) are bacterial transpeptidases involved in peptidoglycan cross-linking of the cell wall. Beta-lactam antibiotics such as amoxicillin bind PBPs and inhibit cell wall synthesis, leading to bactericidal activity. Paracetamol (analgesic/antipyretic), ondansetron (5-HT3 antagonist), and pantoprazole (proton pump inhibitor) do not act on PBPs.
Category reason: The question tests a drug’s mechanism of action (binding to PBPs), which is core Pharmacology knowledge rather than a nursing care decision.

Question 17

What is the most common side effect of Pediclor yl?

Accepted Answer

Answer reason: Pediclor yl shown is triclofos oral solution, a sedative-hypnotic used in pediatrics. Sedation/drowsiness is the expected and most common adverse effect because it acts as a CNS depressant. Gastrointestinal effects like vomiting or diarrhea can occur but are less common than drowsiness. Therefore, drowsiness is the best answer among the options.
Category reason: The question asks about a drug’s common side effect (triclofos/Pediclor yl), which is a pharmacology concept focused on adverse effects rather than nursing care prioritization.

Question 18

Which drug is obtained from the bark of the Cinchona plant?

Accepted Answer

Answer reason: Cinchona bark is a classic natural source of quinine, an alkaloid historically used to treat malaria. The other options come from different sources: morphine from the opium poppy, penicillin from Penicillium mold, and aspirin is a synthetic derivative based on salicylates (historically linked to willow bark). Therefore, quinine is the drug obtained from Cinchona bark.
Category reason: The question tests knowledge of the origin/source of a medication (a natural product drug), which is a pharmacology concept rather than a nursing care decision.

Question 19

Which device is used to deliver dry powder medicine to the lungs in asthma and COPD?

Accepted Answer

Answer reason: Dry powder medications for asthma/COPD are delivered using a dry powder inhaler (DPI). A Revolizer is a type/brand of DPI designed to deliver powdered drug into the lungs with the patient’s inspiratory effort. A nebulizer aerosolizes liquid medication (not dry powder), a glucometer measures blood glucose, and a spirometer measures lung function rather than delivering medication.
Category reason: The question tests knowledge of medication delivery devices (inhalation drug delivery systems) rather than nursing prioritization or a patient-care scenario, making it a Pharmacology-focused foundational science item.

Question 20

Heparin prevents:

Accepted Answer

Answer reason: Heparin is an anticoagulant that enhances antithrombin III activity, thereby inhibiting thrombin (factor IIa) and factor Xa to prevent formation and propagation of blood clots. It is used for prophylaxis and treatment of venous thromboembolism and other thrombotic conditions. It does not treat fever, infection, or diabetes.
Category reason: This question tests the mechanism/therapeutic effect of a medication (heparin), which is primarily Pharmacology rather than a nursing judgment or care-management decision.

Question 21

Which of the following does not cross the blood-brain barrier?

Accepted Answer

Answer reason: Neostigmine is a quaternary ammonium acetylcholinesterase inhibitor, making it permanently charged and poorly lipid soluble, so it does not cross the blood-brain barrier. Physostigmine is a tertiary amine and is lipid soluble, so it can enter the CNS. Atropine and pilocarpine are also tertiary amines and can produce CNS effects at sufficient doses, indicating BBB penetration.
Category reason: This question tests drug properties (tertiary vs quaternary amines) and blood-brain barrier penetration, which is a core pharmacology concept rather than a nursing care decision.

Question 22

What drug interactions increase the risk of drug-induced hemolysis?

Accepted Answer

Answer reason: Nitrofurantoin is a well-known trigger of oxidative hemolysis, especially in patients with G6PD deficiency, leading to drug-induced hemolytic anemia. The other listed choices are vitamins (with Vitamin B3 and niacin being the same compound) and are not typical causes of hemolysis. Therefore, nitrofurantoin is the best answer among the options for increasing risk of drug-induced hemolysis.
Category reason: The item tests knowledge of a medication adverse effect and risk factors (drug-induced hemolysis), which is primarily pharmacology rather than nursing process or clinical prioritization.

Question 23

Codeine is used to suppress?

Accepted Answer

Answer reason: Codeine is an opioid that has antitussive effects by depressing the medullary cough center, thereby reducing the cough reflex. While it is also an analgesic, its classic use “to suppress” refers to cough suppression. It is not an antipyretic, and it has no role in treating malaria or typhoid infections.
Category reason: This item tests knowledge of a drug’s therapeutic use (codeine as an antitussive), which is a core Pharmacology concept rather than a nursing prioritization or intervention scenario.

Question 24

Codeine syrup is used for ..?

Accepted Answer

Answer reason: Codeine syrup is an opioid antitussive that suppresses the cough reflex by acting centrally on the medullary cough center. It is used for symptomatic relief of nonproductive (dry) cough. It does not treat infectious diseases like cholera or pneumonia, and while codeine can be an analgesic in some forms, “codeine syrup” is primarily formulated and prescribed for cough suppression.
Category reason: The question tests the therapeutic use of a medication (codeine syrup) and its clinical indication, which is a core Pharmacology concept rather than a nursing care prioritization or intervention scenario.

Question 25

What is the composition of Normal Saline (NS)?

Accepted Answer

Answer reason: Normal saline is defined as an isotonic intravenous crystalloid solution containing 0.9% sodium chloride in water. This concentration provides approximately 154 mEq/L of both sodium and chloride, making it similar in tonicity to plasma. The other options represent different IV fluids: 5% dextrose (D5W) is glucose in water, 3% NaCl is hypertonic saline, and sterile water alone is hypotonic and not used as an IV infusate by itself.
Category reason: The question tests factual knowledge of an IV solution’s standard formulation (0.9% sodium chloride), which is foundational medication/IV fluid content knowledge rather than nursing judgment or care prioritization, fitting Pharmacology.

Question 26

Which of the following is first-line treatment in severe asthma attack?

Accepted Answer

Answer reason: In an acute severe asthma attack, the first-line medication is an inhaled short-acting beta-2 agonist (SABA) such as salbutamol to rapidly reverse bronchospasm. Ipratropium can be added in moderate-to-severe exacerbations but is not the primary first-line agent. Theophylline is not preferred due to narrow therapeutic index and slower/less predictable benefit in acute attacks. Montelukast is used for chronic control/prevention, not for immediate relief in an acute severe attack.
Category reason: This question tests medication selection for acute asthma exacerbation, focusing on drug classes and indications, which is primarily Pharmacology rather than nursing process or prioritization.

Question 27

The side effect of a drug which has been used as a therapeutic effect in another condition is?

Accepted Answer

Answer reason:  Constipation caused by codeine Opioids such as codeine commonly cause constipation as an adverse effect due to reduced gastrointestinal motility. That same effect is therapeutically useful in treating diarrhea (codeine has antidiarrheal effects). By contrast, captopril-induced cough and ampicillin-associated diarrhea are typically undesirable adverse effects, and quinine is not used clinically as a uterotonic due to safety concerns.
Category reason: This question tests understanding of drug adverse effects that are leveraged therapeutically in other conditions, which is a core Pharmacology concept.

Question 28

The nurse is caring for a client with a history of congestive heart failure (CHF). While reviewing his medications with the nurse, the client asks for help identifying which medication is for CHF. The nurse knows that which of the following medications is used to treat that condition?

Accepted Answer

Answer reason:  Captopril Captopril is an ACE inhibitor used in chronic heart failure to reduce afterload and preload by decreasing angiotensin II and aldosterone effects, improving symptoms and outcomes. Cephalexin is an antibiotic, cimetidine is an H2 blocker for acid-related disorders, and clopidogrel is an antiplatelet used mainly for atherosclerotic disease prevention rather than primary CHF treatment. Therefore, captopril is the medication indicated for CHF among the options.
Category reason: This item primarily tests medication-class recognition and therapeutic use (identifying an ACE inhibitor as a CHF treatment), which is foundational pharmacology knowledge rather than nursing prioritization or a specific care intervention.

Question 29

ANTIDOTE FOR HEPARIN OVERDOSE?

Accepted Answer

Answer reason:  Protamine sulfate Protamine sulfate is the specific antidote for heparin because it binds heparin to form a stable inactive complex, rapidly reversing its anticoagulant effect. Vitamin K reverses warfarin (a vitamin K antagonist), not heparin. Fresh frozen plasma provides clotting factors and is used for factor deficiencies/warfarin reversal in some settings, but it does not directly neutralize heparin. Desmopressin is used to improve platelet function (e.g., von Willebrand disease/uremic platelet dysfunction), not for heparin overdose.
Category reason: This question tests knowledge of a medication antidote and drug reversal mechanisms, which is a core Pharmacology concept rather than a nursing care prioritization scenario.

Question 30

Iodine is used as?

Accepted Answer

Answer reason:  Antiseptic Iodine (e.g., povidone-iodine tincture/solution) is commonly used topically as an antiseptic for skin preparation and wound cleansing due to its broad antimicrobial activity. It is not classified as an antibiotic (systemic antimicrobial drug), not a vaccine, and not a vitamin. While iodine is an essential dietary mineral for thyroid hormone synthesis, its clinical use in this context refers to antisepsis.
Category reason: This item tests knowledge of iodine’s pharmacologic/clinical use as a topical antimicrobial agent, which fits Pharmacology rather than nursing decision-making.

Question 31

Which of the following antibiotics is an aminoglycoside?

Accepted Answer

Answer reason:  Gentamicin Gentamicin is an aminoglycoside antibiotic commonly used for serious gram-negative infections and is known for nephrotoxicity and ototoxicity risks. Ciprofloxacin is a fluoroquinolone, erythromycin is a macrolide, and ceftriaxone is a third-generation cephalosporin. Therefore, among the options, only gentamicin belongs to the aminoglycoside class.
Category reason: This is a drug-class identification question (aminoglycoside vs other antibiotic classes), which is primarily pharmacology content rather than nursing decision-making.

Question 32

Furosemide injection belongs to which drug class?

Accepted Answer

Answer reason:  Loop diuretic Furosemide (Lasix) is a loop diuretic that inhibits the Na+-K+-2Cl− cotransporter in the thick ascending limb of the loop of Henle, producing potent diuresis. It is commonly used for edema (e.g., heart failure) and hypertension when rapid or strong diuresis is needed. Compared with thiazides, it has greater natriuretic effect and carries risks such as hypokalemia and volume depletion.
Category reason: This question tests identification of a medication’s drug class and mechanism category, which is core Pharmacology knowledge rather than a nursing-prioritization or care-management decision.

Question 33

# Find the 'intruder' in the sympathetic synapse:

Accepted Answer

Answer reason:  muscarinic receptor. Sympathetic postganglionic synapses typically release norepinephrine, which acts on adrenergic receptors (e.g., beta receptors) on the target cell membrane. Muscarinic receptors are cholinergic receptors classically associated with parasympathetic effector synapses (and sympathetic innervation of sweat glands). Therefore, a muscarinic receptor is the “intruder” in a typical sympathetic synapse.
Category reason: This question tests autonomic neurotransmitters and receptor types (adrenergic vs cholinergic) at synapses, which is core Pharmacology content rather than a nursing care decision.

Question 34

Quinine used in the treatment of malarial fever is obtained from...?

Accepted Answer

Answer reason:  Bark of Cinchona Quinine is a natural alkaloid historically used as an antimalarial and is extracted from the bark of the Cinchona tree. Rauvolfia roots are associated with reserpine (antihypertensive/antipsychotic). Ricinus communis seeds yield castor oil/ricin, and Atropa belladonna is a source of anticholinergic alkaloids (e.g., atropine), not quinine.
Category reason: This is a drug-source identification question (natural origin of quinine), which is primarily a Pharmacology topic rather than a nursing care or safety decision.

Question 35

Radioactive iodine is used in treatment of?

Accepted Answer

Answer reason:  Thyroid cancer Radioactive iodine (I-131) is selectively taken up by thyroid follicular cells via the sodium-iodide symporter, allowing targeted ablation of thyroid tissue. It is commonly used after thyroidectomy for differentiated thyroid cancers (papillary and follicular) to ablate residual tissue and treat iodine-avid metastases. It is not a standard targeted therapy for lung, breast, or pancreatic cancers because these tissues do not concentrate iodine like thyroid tissue does.
Category reason: This is primarily about a specific therapeutic agent (radioactive iodine) and its clinical indication based on tissue uptake and mechanism, which fits Pharmacology rather than nursing care prioritization.

Question 36

Which combination can lead to serotonin syndrome?

Accepted Answer

Answer reason:  Tramadol + Fluoxetine Tramadol has serotonergic activity (inhibits serotonin reuptake) and fluoxetine is an SSRI; together they can excessively increase synaptic serotonin and precipitate serotonin syndrome. The risk is further increased because fluoxetine can inhibit CYP2D6, altering tramadol metabolism and contributing to serotonergic toxicity. The other combinations listed do not significantly increase serotonin signaling and are not typical causes of serotonin syndrome.
Category reason: This item tests a drug–drug interaction and an adverse drug reaction (serotonin syndrome), which is primarily pharmacology knowledge rather than a nursing-care prioritization scenario.

Question 37

Which of the following is given by oral route?

Accepted Answer

Answer reason:  All the above All listed medications have oral formulations that can be administered by mouth in appropriate clinical situations. Paracetamol is commonly given orally; promethazine also has oral tablets/syrup. Morphine has oral immediate-release and sustained-release forms, and ketorolac has an oral tablet form (typically for short-term use after parenteral therapy).
Category reason: This question tests knowledge of medication dosage forms and routes of administration, which is primarily a Pharmacology topic rather than a nursing judgment/prioritization scenario.

Question 38

Metronidazole belongs to which class of drug?

Accepted Answer

Answer reason:  Antiprotozoal Metronidazole is classically categorized as an antiprotozoal agent and is used to treat infections such as trichomoniasis, giardiasis, and amebiasis. It also has strong antibacterial activity against anaerobic bacteria (e.g., for bacterial vaginosis and C. difficile), but among the listed choices, “antiprotozoal” is the most specific and best classification. It works by generating cytotoxic free radicals in susceptible organisms, leading to DNA damage and cell death.
Category reason: This item tests drug classification and therapeutic category of metronidazole, which is a core Pharmacology concept rather than a nursing-care decision.

Question 39

Clotrimazole is used to treat?

Accepted Answer

Answer reason:  Fungal infections Clotrimazole is an azole antifungal that inhibits ergosterol synthesis, disrupting the fungal cell membrane. It is commonly used for superficial fungal infections such as dermatophytosis (tinea), cutaneous candidiasis, and vulvovaginal candidiasis. It does not treat bacterial infections, and it has no therapeutic role in hypertension or diabetes.
Category reason: This question tests knowledge of a medication’s therapeutic use and drug class (antifungal), which is a core Pharmacology concept rather than a nursing-care decision or prioritization task.

Question 40

What is the mechanism of toxicity in anticholinergic overdose?

Accepted Answer

Answer reason:  Muscarinic blockade Anticholinergic toxicity results from competitive antagonism of acetylcholine at muscarinic receptors (e.g., atropine-like effects), producing the classic sympathetic-appearing syndrome (dry mouth, mydriasis, tachycardia, urinary retention, delirium). It is not due to increased acetylcholine release or acetylcholinesterase inhibition; those mechanisms increase acetylcholine and cause cholinergic toxicity (e.g., salivation, lacrimation, diarrhea, bradycardia). Nicotinic receptor activation is more characteristic of nicotine poisoning or cholinesterase inhibitor effects at neuromuscular junctions. Serotonin receptor upregulation relates to serotonergic syndromes, not anticholinergic overdose.
Category reason: This is primarily testing the pharmacologic mechanism of a toxidrome (anticholinergic overdose) and receptor-level drug effects, which falls under Pharmacology rather than nursing care prioritization or interventions.

Question 41

The chemical name of Aspirin is?

Accepted Answer

Answer reason:  Acetylsalicylic acid Aspirin’s generic chemical name is acetylsalicylic acid (ASA), a salicylate NSAID. Paracetamol (acetaminophen) and ibuprofen are different analgesic/antipyretic drugs with different chemical structures and mechanisms. Sodium chloride is common salt and is unrelated to aspirin.
Category reason: This question tests recognition of a drug’s chemical/generic name, which is a core pharmacology concept rather than a nursing care decision.

Question 42

Which of the following is narcotic analgesic?

Accepted Answer

Answer reason: Pentazocine Pentazocine is an opioid (narcotic) analgesic with mixed agonist-antagonist activity, used for moderate to severe pain. Diclofenac and ketorolac are NSAIDs (non-narcotic analgesics) that inhibit cyclooxygenase. Ondansetron is a 5-HT3 antagonist antiemetic, not an analgesic. Therefore, the only narcotic analgesic listed is pentazocine.
Category reason: This item tests identification/classification of medications (opioid vs NSAID vs antiemetic), which is a core Pharmacology concept rather than a nursing-care decision scenario.

Question 43

What is Ringer Lactate (RL) mainly used for?

Accepted Answer

Answer reason: In surgery and trauma Ringer lactate is an isotonic crystalloid used for intravascular volume expansion in hypovolemia, such as during surgery and after trauma with blood/fluid loss. Its electrolyte composition is relatively balanced, and lactate is metabolized (primarily in the liver) to bicarbonate, which can help buffer mild metabolic acidosis seen in shock. It is not used to control fever or blood sugar, and it is generally avoided as a primary fluid for brain swelling where hypotonicity concerns can worsen cerebral edema.
Category reason: This question tests knowledge of an IV fluid's primary clinical use and properties, which is a foundational pharmacology/IV fluids topic rather than a nursing judgment prioritization scenario.

Question 44

Which of the following is not an antibiotic _?

Accepted Answer

Answer reason: Acetaminophen Acetaminophen is an analgesic and antipyretic used for pain and fever, not for treating bacterial infections. Levofloxacin is a fluoroquinolone antibiotic, streptomycin is an aminoglycoside antibiotic, and amoxicillin is a penicillin-class antibiotic. Therefore, acetaminophen is the only option that is not an antibiotic.
Category reason: This question tests identification of medication classes (antibiotic vs non-antibiotic), which is core Pharmacology knowledge rather than a nursing care decision.

Question 45

Which condition is Acyclovir mainly used to treat?

Accepted Answer

Answer reason: Viral herpes infections Acyclovir is an antiviral medication primarily active against herpesviruses (especially HSV-1, HSV-2, and varicella-zoster virus) by inhibiting viral DNA polymerase after activation by viral thymidine kinase. It is used for conditions like genital/orolabial herpes, herpes encephalitis, and shingles/varicella. It is not effective for bacterial infections like sinusitis, nor for inflammatory/autoimmune diseases such as asthma or rheumatoid arthritis.
Category reason: This question tests the primary therapeutic use/indication of a specific drug (acyclovir), which is a core pharmacology concept rather than a nursing care prioritization scenario.

Question 46

Q-2. Child with yellow teeth after antibiotics. Cause?

Accepted Answer

Answer reason: Tetracycline Tetracyclines chelate calcium and are deposited in developing teeth and bone, leading to permanent yellow-brown discoloration and enamel hypoplasia when given during tooth development (e.g., pregnancy, infancy/childhood). This adverse effect is classically associated with tetracycline-class antibiotics and is why they are generally avoided in young children. The other listed antibiotics are not typical causes of permanent tooth staining.
Category reason: This question tests a medication-specific adverse effect (tooth discoloration) and identification of the responsible antibiotic class, which is primarily Pharmacology.

Question 47

Which of the following antibiotics is most likely to cause permanent discoloration of teeth when administered to newborns and children under 8 years of age?

Accepted Answer

Answer reason: Tetracycline Tetracyclines chelate calcium and are incorporated into developing teeth and bones, leading to permanent yellow-brown tooth discoloration and enamel hypoplasia. This risk is highest during tooth development, so tetracyclines are avoided in pregnancy and in children younger than 8 years. The other listed antibiotics are not classically associated with permanent tooth staining as a primary adverse effect in this age group.
Category reason: This item tests knowledge of a classic adverse drug effect and age-related contraindication of an antibiotic class, which is a core Pharmacology concept rather than a nursing care prioritization scenario.

Question 48

Which of the following is a proton pump inhibitor (PPI)?

Accepted Answer

Answer reason: Omeprazole Omeprazole is a proton pump inhibitor that irreversibly blocks the gastric H+/K+ ATPase in parietal cells, markedly reducing gastric acid secretion. Ranitidine is an H2-receptor antagonist (not a PPI). Sucraliate (sucralfate) is a mucosal protectant, and misoprostol is a prostaglandin E1 analog used to prevent NSAID-induced ulcers.
Category reason: This question tests identification of a medication class (PPI) and distinguishing it from other antiulcer drug classes, which is core Pharmacology knowledge rather than a nursing care decision.

Question 49

Which of the following is a beta-lactam antibiotic?

Accepted Answer

Answer reason: Amoxicillin Amoxicillin is a penicillin-class antibiotic and contains the characteristic beta-lactam ring, making it a beta-lactam antibiotic. Ciprofloxacin is a fluoroquinolone, erythromycin is a macrolide, and vancomycin is a glycopeptide; none of these are beta-lactams. Therefore, among the choices, amoxicillin is the only beta-lactam agent listed.
Category reason: This question tests knowledge of antibiotic drug classes and their structural/pharmacologic classification (beta-lactams vs other classes), which falls under Pharmacology.

Question 50

Viagra (sildenafil) usually makes blood pressure:

Accepted Answer

Answer reason: Decrease slightly Sildenafil is a PDE-5 inhibitor that increases cGMP in vascular smooth muscle, promoting vasodilation. Systemic vasodilation commonly causes a mild decrease in blood pressure. The drop can become clinically significant when combined with nitrates or other potent vasodilators, leading to hypotension. Therefore, a slight decrease is the typical effect on blood pressure.
Category reason: This question tests the drug effect of sildenafil on systemic blood pressure, which is a medication mechanism/adverse effect topic in Pharmacology.

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