ADVANCED PHARMACOLOGY
MIDTERM EXAM QUESTIONS AND
ANSWERS
1. Which phase of pharmacokinetics is most significantly impacted by the first-pass effect
when a medication is administered orally?
A. Distribution
B. Excretion
C. Absorption
D. Metabolism
Answer: D
Conceptual Explanation: The first-pass effect refers to the rapid hepatic metabolism of a
drug that occurs after it is absorbed from the gastrointestinal tract and delivered to the
liver via the portal vein before reaching systemic circulation.
2. A patient with a history of asthma is diagnosed with hypertension. Which antihypertensive
class should be used with extreme caution?
A. ACE Inhibitors
,B. Thiazide Diuretics
C. Calcium Channel Blockers
D. Non-selective Beta-blockers
Answer: D
Conceptual Explanation: Non-selective beta-blockers like propranolol block both beta-1
and beta-2 receptors. Blocking beta-2 receptors in the lungs can cause bronchoconstriction,
which is dangerous for patients with asthma.
3. Which mechanism explains why ACE inhibitors are commonly associated with a dry, non-
productive cough?
A. Increased levels of bradykinin
B. Direct irritation of the bronchial mucosa
C. Reduced surfactant production
D. Systemic fluid overload
Answer: A
Conceptual Explanation: ACE is responsible for the breakdown of bradykinin. Inhibiting
ACE leads to the accumulation of bradykinin in the lungs, which can induce the
characteristic dry cough.
, 4. When prescribing Warfarin, which laboratory value is used to monitor therapeutic efficacy
and safety?
A. Activated Partial Thromboplastin Time (aPTT)
B. Prothrombin Time and International Normalized Ratio (PT/INR)
C. Creatinine Clearance
D. Bleeding time
Answer: B
Conceptual Explanation: PT/INR is the standard measurement for monitoring Warfarin
therapy, with a target INR typically between 2.0 and 3.0 for most indications like atrial
fibrillation.
5. A nurse practitioner is treating a patient with a narrow therapeutic index drug. What does
a narrow therapeutic index imply?
A. The drug is highly potent.
B. The drug has a very long half-life.
C. The difference between the effective dose and the toxic dose is small.
D. The drug requires hepatic induction.
Answer: C
MIDTERM EXAM QUESTIONS AND
ANSWERS
1. Which phase of pharmacokinetics is most significantly impacted by the first-pass effect
when a medication is administered orally?
A. Distribution
B. Excretion
C. Absorption
D. Metabolism
Answer: D
Conceptual Explanation: The first-pass effect refers to the rapid hepatic metabolism of a
drug that occurs after it is absorbed from the gastrointestinal tract and delivered to the
liver via the portal vein before reaching systemic circulation.
2. A patient with a history of asthma is diagnosed with hypertension. Which antihypertensive
class should be used with extreme caution?
A. ACE Inhibitors
,B. Thiazide Diuretics
C. Calcium Channel Blockers
D. Non-selective Beta-blockers
Answer: D
Conceptual Explanation: Non-selective beta-blockers like propranolol block both beta-1
and beta-2 receptors. Blocking beta-2 receptors in the lungs can cause bronchoconstriction,
which is dangerous for patients with asthma.
3. Which mechanism explains why ACE inhibitors are commonly associated with a dry, non-
productive cough?
A. Increased levels of bradykinin
B. Direct irritation of the bronchial mucosa
C. Reduced surfactant production
D. Systemic fluid overload
Answer: A
Conceptual Explanation: ACE is responsible for the breakdown of bradykinin. Inhibiting
ACE leads to the accumulation of bradykinin in the lungs, which can induce the
characteristic dry cough.
, 4. When prescribing Warfarin, which laboratory value is used to monitor therapeutic efficacy
and safety?
A. Activated Partial Thromboplastin Time (aPTT)
B. Prothrombin Time and International Normalized Ratio (PT/INR)
C. Creatinine Clearance
D. Bleeding time
Answer: B
Conceptual Explanation: PT/INR is the standard measurement for monitoring Warfarin
therapy, with a target INR typically between 2.0 and 3.0 for most indications like atrial
fibrillation.
5. A nurse practitioner is treating a patient with a narrow therapeutic index drug. What does
a narrow therapeutic index imply?
A. The drug is highly potent.
B. The drug has a very long half-life.
C. The difference between the effective dose and the toxic dose is small.
D. The drug requires hepatic induction.
Answer: C
