NR605 ADVANCED PHARMACOLOGY
MIDTERM COMPREHENSIVE EXAM
QUESTIONS AND ANSWERS 2026/2027
UPDATE || 100% GUARANTEED PASS
1. A patient is prescribed a drug that is a potent inducer of the CYP3A4 enzyme. If they are
also taking a substrate of this enzyme, what is the most likely clinical consequence for the
substrate drug?
A. Increased serum concentration and toxicity
B. Decreased metabolic rate and prolonged half-life
C. No change in the pharmacokinetics of the substrate
D. Decreased therapeutic effect due to enhanced clearance
Answer: D
Conceptual Explanation: Enzyme inducers increase the activity of CYP450 enzymes,
leading to faster metabolism of substrate drugs and lower plasma concentrations.
2. Which of the following describes the ‘first-pass effect’ in pharmacology?
A. The initial distribution of drug to high-blood-flow organs
,B. The excretion of a drug through the kidneys on the first cycle
C. The metabolism of a drug in the liver before it reaches systemic circulation
D. The binding of a drug to plasma proteins immediately after absorption
Answer: C
Conceptual Explanation: The first-pass effect refers to the rapid hepatic metabolism of an
orally administered drug before it reaches the systemic circulation.
3. A patient with a history of severe asthma is diagnosed with hypertension. Which
antihypertensive class should be used with extreme caution?
A. Non-selective beta-blockers
B. Angiotensin-converting enzyme (ACE) inhibitors
C. Calcium channel blockers
D. Thiazide diuretics
Answer: A
Conceptual Explanation: Non-selective beta-blockers (like propranolol) can block Beta-2
receptors in the lungs, causing bronchoconstriction and exacerbating asthma.
4. What is the primary mechanism of action of Angiotensin-Converting Enzyme (ACE)
Inhibitors?
A. Inhibiting the conversion of Angiotensin I to Angiotensin II
B. Blocking the binding of Angiotensin II to its receptor
, C. Directly inhibiting the release of renin from the kidneys
D. Increasing the breakdown of bradykinin in the lungs
Answer: A
Conceptual Explanation: ACE inhibitors prevent the conversion of Angiotensin I to the
potent vasoconstrictor Angiotensin II.
5. A patient taking Lisinopril develops a dry, persistent cough. This side effect is primarily
attributed to the accumulation of which substance?
A. Angiotensin II
B. Bradykinin
C. Renin
D. Aldosterone
Answer: B
Conceptual Explanation: ACE inhibitors inhibit the breakdown of bradykinin, leading to
its accumulation in the lungs, which triggers a cough.
6. Which electrolyte abnormality significantly increases the risk of Digoxin toxicity?
A. Hypokalemia
B. Hyperkalemia
C. Hypercalcemia
MIDTERM COMPREHENSIVE EXAM
QUESTIONS AND ANSWERS 2026/2027
UPDATE || 100% GUARANTEED PASS
1. A patient is prescribed a drug that is a potent inducer of the CYP3A4 enzyme. If they are
also taking a substrate of this enzyme, what is the most likely clinical consequence for the
substrate drug?
A. Increased serum concentration and toxicity
B. Decreased metabolic rate and prolonged half-life
C. No change in the pharmacokinetics of the substrate
D. Decreased therapeutic effect due to enhanced clearance
Answer: D
Conceptual Explanation: Enzyme inducers increase the activity of CYP450 enzymes,
leading to faster metabolism of substrate drugs and lower plasma concentrations.
2. Which of the following describes the ‘first-pass effect’ in pharmacology?
A. The initial distribution of drug to high-blood-flow organs
,B. The excretion of a drug through the kidneys on the first cycle
C. The metabolism of a drug in the liver before it reaches systemic circulation
D. The binding of a drug to plasma proteins immediately after absorption
Answer: C
Conceptual Explanation: The first-pass effect refers to the rapid hepatic metabolism of an
orally administered drug before it reaches the systemic circulation.
3. A patient with a history of severe asthma is diagnosed with hypertension. Which
antihypertensive class should be used with extreme caution?
A. Non-selective beta-blockers
B. Angiotensin-converting enzyme (ACE) inhibitors
C. Calcium channel blockers
D. Thiazide diuretics
Answer: A
Conceptual Explanation: Non-selective beta-blockers (like propranolol) can block Beta-2
receptors in the lungs, causing bronchoconstriction and exacerbating asthma.
4. What is the primary mechanism of action of Angiotensin-Converting Enzyme (ACE)
Inhibitors?
A. Inhibiting the conversion of Angiotensin I to Angiotensin II
B. Blocking the binding of Angiotensin II to its receptor
, C. Directly inhibiting the release of renin from the kidneys
D. Increasing the breakdown of bradykinin in the lungs
Answer: A
Conceptual Explanation: ACE inhibitors prevent the conversion of Angiotensin I to the
potent vasoconstrictor Angiotensin II.
5. A patient taking Lisinopril develops a dry, persistent cough. This side effect is primarily
attributed to the accumulation of which substance?
A. Angiotensin II
B. Bradykinin
C. Renin
D. Aldosterone
Answer: B
Conceptual Explanation: ACE inhibitors inhibit the breakdown of bradykinin, leading to
its accumulation in the lungs, which triggers a cough.
6. Which electrolyte abnormality significantly increases the risk of Digoxin toxicity?
A. Hypokalemia
B. Hyperkalemia
C. Hypercalcemia
