PATHOPHYSIOLOGY & PHARMACOLOGY FINAL EXAM Q&A 2026-
2027 | NURSING CARE PLANS GUIDE,100% CORRECT ALREADY
GRADED A+
1.
Which mechanism of action best describes beta-blockers in the treatment of
hypertension?
A. Increase cardiac output
B. Block beta-adrenergic receptors, reducing heart rate and contractility
C. Promote sodium reabsorption in the kidneys
D. Stimulate the sympathetic nervous system
Correct Answer: B
Rationale: Beta-blockers lower blood pressure by blocking beta-adrenergic
receptors, reducing heart rate and myocardial contractility.
2.
A patient taking a non-selective beta-blocker should be closely monitored for
which complication?
A. Bradycardia
B. Hypoglycemia masking
C. Bronchospasm
D. All of the above
Correct Answer: D
Rationale: Non-selective beta-blockers may cause bradycardia, mask
hypoglycemia symptoms in diabetics, and induce bronchospasm in asthmatic
patients.
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3.
ACE inhibitors reduce blood pressure primarily by which mechanism?
A. Blocking calcium channels in vascular smooth muscle
B. Inhibiting conversion of angiotensin I to angiotensin II
C. Enhancing sodium retention
D. Stimulating adrenergic receptors
Correct Answer: B
Rationale: ACE inhibitors block the conversion of angiotensin I to angiotensin II,
leading to vasodilation and reduced blood pressure.
4.
Which side effect is most commonly associated with ACE inhibitors?
A. Dry cough
B. Constipation
C. Hyperglycemia
D. Bradycardia
Correct Answer: A
Rationale: ACE inhibitors may cause a persistent dry cough due to accumulation
of bradykinin.
5.
Which electrolyte imbalance is most associated with ACE inhibitors?
A. Hypokalemia
B. Hyperkalemia
C. Hyponatremia
D. Hypocalcemia
Correct Answer: B
Rationale: ACE inhibitors reduce aldosterone secretion, leading to potassium
retention and risk of hyperkalemia.
6.
Loop diuretics like furosemide act on which part of the nephron?
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A. Distal convoluted tubule
B. Proximal tubule
C. Loop of Henle
D. Collecting duct
Correct Answer: C
Rationale: Loop diuretics inhibit sodium, potassium, and chloride reabsorption in
the ascending loop of Henle.
7.
Which adverse effect is a hallmark of loop diuretics?
A. Hypokalemia
B. Hypercalcemia
C. Bradycardia
D. Hyperkalemia
Correct Answer: A
Rationale: Loop diuretics cause significant potassium loss, predisposing patients
to hypokalemia.
8.
Thiazide diuretics are commonly used in hypertension because they:
A. Increase potassium retention
B. Reduce plasma volume and peripheral resistance
C. Block adrenergic receptors
D. Increase renin secretion
Correct Answer: B
Rationale: Thiazides lower blood pressure by reducing extracellular fluid volume
and decreasing vascular resistance.
9.
A patient on thiazide diuretics should be monitored for which laboratory
abnormality?
A. Hyperkalemia
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B. Hyponatremia
C. Hypocalcemia
D. Hypermagnesemia
Correct Answer: B
Rationale: Thiazides may cause electrolyte imbalances, especially hyponatremia
and hypokalemia.
10.
Which antibiotic class inhibits bacterial cell wall synthesis?
A. Penicillins
B. Aminoglycosides
C. Tetracyclines
D. Macrolides
Correct Answer: A
Rationale: Penicillins inhibit bacterial cell wall synthesis, making them effective
against many gram-positive organisms.
11.
Which adverse reaction is commonly associated with aminoglycosides (e.g.,
gentamicin)?
A. Ototoxicity and nephrotoxicity
B. Hepatotoxicity
C. Hypokalemia
D. Constipation
Correct Answer: A
Rationale: Aminoglycosides can damage the kidneys and auditory system;
monitoring renal function and hearing is critical.
12.
Tetracyclines are contraindicated in which population?
A. Pregnant women and children under 8 years
B. Elderly patients