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NUR 2502 EXAM 3 – DRUG CLASSIFICATIONS &
MECHANISMS 2026/2027 | GALEN COLLEGE | EXPERT
VERIFIED | 75 VERIFIED Q&A | DETAILED RATIONALES
| PASS GUARANTEED – A+ GRADED
Question 1
A nurse is reviewing the mechanism of action of beta-blockers. Which of the following is the primary
mechanism?
A. Block alpha-adrenergic receptors
B. Block beta-adrenergic receptors
C. Block calcium channels
D. Inhibit angiotensin-converting enzyme
Correct Answer: B
Rationale: Beta-blockers block beta-adrenergic receptors, reducing heart rate, contractility, and
renin release.
Question 2
A nurse is reviewing the side effects of beta-blockers. Which of the following is a common side
effect?
A. Tachycardia
B. Bradycardia
C. Hypertension
D. Bronchodilation
Correct Answer: B
Rationale: Beta-blockers cause bradycardia, hypotension, and bronchospasm (non-selective).
Question 3
A nurse is reviewing the mechanism of action of ACE inhibitors. Which of the following is the primary
mechanism?
A. Block angiotensin II receptors
B. Inhibit angiotensin-converting enzyme
C. Block calcium channels
D. Block beta receptors
Correct Answer: B
,2
Rationale: ACE inhibitors inhibit angiotensin-converting enzyme, preventing angiotensin II
formation.
Question 4
A nurse is reviewing the side effects of ACE inhibitors. Which of the following is a common side
effect?
A. Hypokalemia
B. Dry cough
C. Bradycardia
D. Bronchospasm
Correct Answer: B
Rationale: ACE inhibitors cause dry cough due to bradykinin accumulation.
Question 5
A nurse is reviewing the mechanism of action of ARBs. Which of the following is the primary
mechanism?
A. Inhibit ACE
B. Block angiotensin II receptors
C. Block calcium channels
D. Block beta receptors
Correct Answer: B
Rationale: ARBs block angiotensin II type 1 receptors.
Question 6
A nurse is reviewing the mechanism of action of calcium channel blockers. Which of the following is
the primary mechanism?
A. Block beta receptors
B. Block L-type calcium channels
C. Block sodium channels
D. Block potassium channels
Correct Answer: B
Rationale: Calcium channel blockers block L-type calcium channels.
Question 7
A nurse is reviewing the side effects of calcium channel blockers. Which of the following is a
common side effect?
, 3
A. Bradycardia
B. Peripheral edema
C. Dry cough
D. Bronchospasm
Correct Answer: B
Rationale: Calcium channel blockers (especially dihydropyridines like amlodipine) cause peripheral
edema.
Question 8
A nurse is reviewing the mechanism of action of loop diuretics. Which of the following is the primary
site?
A. Proximal tubule
B. Ascending limb of the loop of Henle
C. Distal tubule
D. Collecting duct
Correct Answer: B
Rationale: Loop diuretics act on the ascending limb of the loop of Henle.
Question 9
A nurse is reviewing the side effects of loop diuretics. Which of the following is a side effect?
A. Hyperkalemia
B. Hypokalemia and hypocalcemia
C. Hypercalcemia
D. Metabolic acidosis
Correct Answer: B
Rationale: Loop diuretics cause hypokalemia and hypocalcemia.
Question 10
A nurse is reviewing the mechanism of action of thiazide diuretics. Which of the following is the
primary site?
A. Proximal tubule
B. Ascending limb of the loop of Henle
C. Distal convoluted tubule
D. Collecting duct
Correct Answer: C
Rationale: Thiazide diuretics act on the distal convoluted tubule.
NUR 2502 EXAM 3 – DRUG CLASSIFICATIONS &
MECHANISMS 2026/2027 | GALEN COLLEGE | EXPERT
VERIFIED | 75 VERIFIED Q&A | DETAILED RATIONALES
| PASS GUARANTEED – A+ GRADED
Question 1
A nurse is reviewing the mechanism of action of beta-blockers. Which of the following is the primary
mechanism?
A. Block alpha-adrenergic receptors
B. Block beta-adrenergic receptors
C. Block calcium channels
D. Inhibit angiotensin-converting enzyme
Correct Answer: B
Rationale: Beta-blockers block beta-adrenergic receptors, reducing heart rate, contractility, and
renin release.
Question 2
A nurse is reviewing the side effects of beta-blockers. Which of the following is a common side
effect?
A. Tachycardia
B. Bradycardia
C. Hypertension
D. Bronchodilation
Correct Answer: B
Rationale: Beta-blockers cause bradycardia, hypotension, and bronchospasm (non-selective).
Question 3
A nurse is reviewing the mechanism of action of ACE inhibitors. Which of the following is the primary
mechanism?
A. Block angiotensin II receptors
B. Inhibit angiotensin-converting enzyme
C. Block calcium channels
D. Block beta receptors
Correct Answer: B
,2
Rationale: ACE inhibitors inhibit angiotensin-converting enzyme, preventing angiotensin II
formation.
Question 4
A nurse is reviewing the side effects of ACE inhibitors. Which of the following is a common side
effect?
A. Hypokalemia
B. Dry cough
C. Bradycardia
D. Bronchospasm
Correct Answer: B
Rationale: ACE inhibitors cause dry cough due to bradykinin accumulation.
Question 5
A nurse is reviewing the mechanism of action of ARBs. Which of the following is the primary
mechanism?
A. Inhibit ACE
B. Block angiotensin II receptors
C. Block calcium channels
D. Block beta receptors
Correct Answer: B
Rationale: ARBs block angiotensin II type 1 receptors.
Question 6
A nurse is reviewing the mechanism of action of calcium channel blockers. Which of the following is
the primary mechanism?
A. Block beta receptors
B. Block L-type calcium channels
C. Block sodium channels
D. Block potassium channels
Correct Answer: B
Rationale: Calcium channel blockers block L-type calcium channels.
Question 7
A nurse is reviewing the side effects of calcium channel blockers. Which of the following is a
common side effect?
, 3
A. Bradycardia
B. Peripheral edema
C. Dry cough
D. Bronchospasm
Correct Answer: B
Rationale: Calcium channel blockers (especially dihydropyridines like amlodipine) cause peripheral
edema.
Question 8
A nurse is reviewing the mechanism of action of loop diuretics. Which of the following is the primary
site?
A. Proximal tubule
B. Ascending limb of the loop of Henle
C. Distal tubule
D. Collecting duct
Correct Answer: B
Rationale: Loop diuretics act on the ascending limb of the loop of Henle.
Question 9
A nurse is reviewing the side effects of loop diuretics. Which of the following is a side effect?
A. Hyperkalemia
B. Hypokalemia and hypocalcemia
C. Hypercalcemia
D. Metabolic acidosis
Correct Answer: B
Rationale: Loop diuretics cause hypokalemia and hypocalcemia.
Question 10
A nurse is reviewing the mechanism of action of thiazide diuretics. Which of the following is the
primary site?
A. Proximal tubule
B. Ascending limb of the loop of Henle
C. Distal convoluted tubule
D. Collecting duct
Correct Answer: C
Rationale: Thiazide diuretics act on the distal convoluted tubule.
