Revision Hub // Pharmacology // 90+ questions and answers // Test Bank.

Revision Hub // Pharmacology // 90+
questions and answers // Test Bank.
What is the primary mechanism of action of beta-2 adrenergic agonists used in asthma
management?
A. Constriction of bronchial smooth muscles
B. Inhibition of histamine release from mast cells
C. Relaxation of bronchial smooth muscles via cyclic AMP increase
D. Blockade of muscarinic receptors in airways
✔️✔️ Correct answer: C. Relaxation of bronchial smooth muscles via cyclic AMP increase

Which drug is most appropriate for rapid reversal of opioid overdose symptoms in emergency
settings?
A. Diazepam
B. Naloxone
C. Flumazenil
D. Atropine
✔️✔️ Correct answer: B. Naloxone

Which class of drugs is commonly associated with dry cough as a side effect?
A. Calcium channel blockers
B. ACE inhibitors
C. Loop diuretics
D. Beta blockers
✔️✔️ Correct answer: B. ACE inhibitors

Which antibiotic is known to inhibit bacterial cell wall synthesis by binding to PBPs?
A. Tetracycline
B. Penicillin
C. Erythromycin
D. Ciprofloxacin
✔️✔️ Correct answer: B. Penicillin

What is the main therapeutic effect of furosemide in patients with heart failure?
A. Increase potassium retention
B. Promote sodium and water excretion
C. Block beta receptors in the heart
D. Increase myocardial contractility directly
✔️✔️ Correct answer: B. Promote sodium and water excretion

Which drug is commonly used as first-line treatment for type 2 diabetes mellitus?
A. Insulin glargine
B. Metformin
C. Glibenclamide

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,D. Pioglitazone
✔️✔️ Correct answer: B. Metformin

Which mechanism best describes aspirin’s anti-inflammatory action?
A. Inhibition of dopamine receptors
B. Irreversible inhibition of COX enzymes
C. Blockade of serotonin uptake
D. Activation of opioid receptors
✔️✔️ Correct answer: B. Irreversible inhibition of COX enzymes

Which drug is used as an antidote for heparin overdose?
A. Vitamin K
B. Protamine sulfate
C. Naloxone
D. Acetylcysteine
✔️✔️ Correct answer: B. Protamine sulfate

Which class of drugs is associated with tendinitis and tendon rupture as a rare side effect?
A. Macrolides
B. Fluoroquinolones
C. Sulfonamides
D. Cephalosporins
✔️✔️ Correct answer: B. Fluoroquinolones

What is the primary effect of atropine on the parasympathetic nervous system?
A. Enhances acetylcholine release
B. Stimulates muscarinic receptors
C. Blocks muscarinic receptors
D. Increases norepinephrine activity
✔️✔️ Correct answer: C. Blocks muscarinic receptors

Which drug is commonly used to treat anaphylactic shock?
A. Prednisolone
B. Epinephrine
C. Salbutamol
D. Diphenhydramine
✔️✔️ Correct answer: B. Epinephrine

Which diuretic class causes potassium loss as a major side effect?
A. Potassium-sparing diuretics
B. Thiazide diuretics
C. Carbonic anhydrase inhibitors
D. Aldosterone antagonists
✔️✔️ Correct answer: B. Thiazide diuretics


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, Which drug is a benzodiazepine used for acute anxiety relief?
A. Diazepam
B. Haloperidol
C. Sertraline
D. Lithium
✔️✔️ Correct answer: A. Diazepam

Which insulin type has the fastest onset of action?
A. NPH insulin
B. Regular insulin
C. Rapid-acting insulin analog
D. Long-acting insulin
✔️✔️ Correct answer: C. Rapid-acting insulin analog

Which drug is used to treat tuberculosis and is known for red-orange urine discoloration?
A. Isoniazid
B. Rifampicin
C. Ethambutol
D. Pyrazinamide
✔️✔️ Correct answer: B. Rifampicin

Which antihypertensive drug acts by blocking angiotensin II receptors?
A. Enalapril
B. Losartan
C. Atenolol
D. Hydrochlorothiazide
✔️✔️ Correct answer: B. Losartan

Which drug is used to treat Parkinson’s disease by increasing dopamine levels?
A. Haloperidol
B. Levodopa
C. Diazepam
D. Fluoxetine
✔️✔️ Correct answer: B. Levodopa

Which drug is most commonly used for lowering cholesterol levels?
A. Omeprazole
B. Simvastatin
C. Metformin
D. Warfarin
✔️✔️ Correct answer: B. Simvastatin

Which antibiotic inhibits protein synthesis by binding to the 30S ribosomal subunit?
A. Penicillin
B. Tetracycline

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