NR565 ADVANCED PHARMACOLOGY
COMPREHENSIVE EXAM QUESTION
BANK (VERIFIED AND CORRECT Q & A)
SATISFACTION GUARANTEED 2026/2027
CHAMBERLAIN
1. A patient is taking a drug that is a strong inducer of the CYP3A4 enzyme system. How will
this most likely affect the plasma concentration of a co-administered drug that is a substrate
of the same enzyme?
A. Decrease the concentration of the substrate drug
B. Increase the concentration of the substrate drug
C. Have no effect on the substrate drug concentration
D. Slow the metabolism of the substrate drug
Answer: A
Conceptual Explanation: CYP450 inducers speed up the metabolism of substrate drugs,
leading to decreased plasma concentrations and potentially therapeutic failure.
2. Which of the following describes the ‘First-Pass Effect’ in pharmacology?
A. The excretion of a drug by the kidneys after the first filtration
B. The metabolism of a drug in the liver before it enters systemic circulation
,C. The binding of a drug to plasma proteins before reaching the site of action
D. The distribution of a drug to the brain via the blood-brain barrier
Answer: B
Conceptual Explanation: The first-pass effect occurs when an oral drug is absorbed from
the GI tract and carried to the liver via the portal vein, where it is metabolized before
reaching the rest of the body.
3. A patient with a creatinine clearance of 25 mL/min is prescribed a drug primarily excreted
by the kidneys. What adjustment is usually necessary?
A. Increase the dose frequency
B. Increase the total daily dose
C. Switch to an intravenous route only
D. Decrease the dose or increase the dosing interval
Answer: D
Conceptual Explanation: Impaired renal function reduces drug clearance, necessitating a
dose reduction or longer intervals between doses to prevent toxicity.
4. Which medication is contraindicated in a patient with a known history of angioedema
while taking Lisinopril?
A. Losartan
B. Amlodipine
, C. Hydrochlorothiazide
D. Metoprolol
Answer: A
Conceptual Explanation: While ARBs like Losartan have a lower risk than ACE inhibitors,
a history of ACE inhibitor-induced angioedema is a relative contraindication for ARBs due
to potential cross-reactivity.
5. A patient on Warfarin therapy begins taking Amiodarone. What is the expected
interaction?
A. There is no significant interaction between these two drugs
B. Amiodarone induces Warfarin metabolism, decreasing INR
C. Amiodarone decreases the absorption of Warfarin
D. Amiodarone inhibits Warfarin metabolism, increasing INR
Answer: D
Conceptual Explanation: Amiodarone is a potent inhibitor of CYP2C9, the primary
enzyme that metabolizes Warfarin, leading to increased Warfarin levels and a higher risk of
bleeding.
6. In the management of Type 2 Diabetes, which mechanism of action is specific to GLP-1
receptor agonists?
A. Stimulating glucose-dependent insulin secretion and slowing gastric emptying
COMPREHENSIVE EXAM QUESTION
BANK (VERIFIED AND CORRECT Q & A)
SATISFACTION GUARANTEED 2026/2027
CHAMBERLAIN
1. A patient is taking a drug that is a strong inducer of the CYP3A4 enzyme system. How will
this most likely affect the plasma concentration of a co-administered drug that is a substrate
of the same enzyme?
A. Decrease the concentration of the substrate drug
B. Increase the concentration of the substrate drug
C. Have no effect on the substrate drug concentration
D. Slow the metabolism of the substrate drug
Answer: A
Conceptual Explanation: CYP450 inducers speed up the metabolism of substrate drugs,
leading to decreased plasma concentrations and potentially therapeutic failure.
2. Which of the following describes the ‘First-Pass Effect’ in pharmacology?
A. The excretion of a drug by the kidneys after the first filtration
B. The metabolism of a drug in the liver before it enters systemic circulation
,C. The binding of a drug to plasma proteins before reaching the site of action
D. The distribution of a drug to the brain via the blood-brain barrier
Answer: B
Conceptual Explanation: The first-pass effect occurs when an oral drug is absorbed from
the GI tract and carried to the liver via the portal vein, where it is metabolized before
reaching the rest of the body.
3. A patient with a creatinine clearance of 25 mL/min is prescribed a drug primarily excreted
by the kidneys. What adjustment is usually necessary?
A. Increase the dose frequency
B. Increase the total daily dose
C. Switch to an intravenous route only
D. Decrease the dose or increase the dosing interval
Answer: D
Conceptual Explanation: Impaired renal function reduces drug clearance, necessitating a
dose reduction or longer intervals between doses to prevent toxicity.
4. Which medication is contraindicated in a patient with a known history of angioedema
while taking Lisinopril?
A. Losartan
B. Amlodipine
, C. Hydrochlorothiazide
D. Metoprolol
Answer: A
Conceptual Explanation: While ARBs like Losartan have a lower risk than ACE inhibitors,
a history of ACE inhibitor-induced angioedema is a relative contraindication for ARBs due
to potential cross-reactivity.
5. A patient on Warfarin therapy begins taking Amiodarone. What is the expected
interaction?
A. There is no significant interaction between these two drugs
B. Amiodarone induces Warfarin metabolism, decreasing INR
C. Amiodarone decreases the absorption of Warfarin
D. Amiodarone inhibits Warfarin metabolism, increasing INR
Answer: D
Conceptual Explanation: Amiodarone is a potent inhibitor of CYP2C9, the primary
enzyme that metabolizes Warfarin, leading to increased Warfarin levels and a higher risk of
bleeding.
6. In the management of Type 2 Diabetes, which mechanism of action is specific to GLP-1
receptor agonists?
A. Stimulating glucose-dependent insulin secretion and slowing gastric emptying
