ADVANCED PHARMACOLOGY (NURS
6521) FINAL COMPREHENSIVE EXAM
QUESTIONS AND ANSWERS
1. A patient with chronic kidney disease (CKD) requires an antibiotic. Which pharmacokinetic
phase is most affected by this condition?
A. Absorption
B. Distribution
C. Metabolism
D. Excretion
Answer: D
Conceptual Explanation: Excretion is the process by which drugs are removed from the
body, primarily through the kidneys. In CKD, the glomerular filtration rate is reduced,
leading to potential toxicity if dosages are not adjusted.
2. When prescribing a drug with a narrow therapeutic index, the nurse practitioner
understands that:
A. The drug is very safe even at high doses.
,B. There is a small margin between the effective and toxic doses.
C. The drug does not require plasma level monitoring.
D. The drug has a long half-life.
Answer: B
Conceptual Explanation: A narrow therapeutic index means that the difference between
the dose that produces a therapeutic effect and the dose that produces toxicity is very
small, necessitating close monitoring.
3. Which of the following describes the ‘First-Pass Effect’?
A. The binding of a drug to plasma proteins like albumin.
B. The rapid excretion of a drug by the kidneys.
C. The initial metabolism of a drug in the liver before it reaches systemic circulation.
D. The distribution of a drug to the brain via the blood-brain barrier.
Answer: C
Conceptual Explanation: The first-pass effect occurs when an oral drug is absorbed from
the GI tract and enters the portal circulation, where the liver metabolizes a significant
portion before it reaches the rest of the body.
4. A patient is taking Warfarin and starts a new medication that is a known CYP450 enzyme
inhibitor. What is the likely result?
A. Decreased serum levels of Warfarin.
, B. Increased serum levels of Warfarin, increasing bleeding risk.
C. No change in Warfarin levels.
D. Decreased INR levels.
Answer: B
Conceptual Explanation: Inhibitors of the Cytochrome P450 system slow down the
metabolism of substrate drugs (like Warfarin), leading to increased drug levels and an
increased risk of toxicity or side effects.
5. Which drug class is considered first-line for a patient with hypertension and a history of
Type 2 Diabetes?
A. Beta-Blockers
B. Calcium Channel Blockers
C. Loop Diuretics
D. ACE Inhibitors
Answer: D
Conceptual Explanation: ACE Inhibitors are preferred in diabetic patients because they
provide renoprotective effects and help prevent or slow the progression of diabetic
nephropathy.
6521) FINAL COMPREHENSIVE EXAM
QUESTIONS AND ANSWERS
1. A patient with chronic kidney disease (CKD) requires an antibiotic. Which pharmacokinetic
phase is most affected by this condition?
A. Absorption
B. Distribution
C. Metabolism
D. Excretion
Answer: D
Conceptual Explanation: Excretion is the process by which drugs are removed from the
body, primarily through the kidneys. In CKD, the glomerular filtration rate is reduced,
leading to potential toxicity if dosages are not adjusted.
2. When prescribing a drug with a narrow therapeutic index, the nurse practitioner
understands that:
A. The drug is very safe even at high doses.
,B. There is a small margin between the effective and toxic doses.
C. The drug does not require plasma level monitoring.
D. The drug has a long half-life.
Answer: B
Conceptual Explanation: A narrow therapeutic index means that the difference between
the dose that produces a therapeutic effect and the dose that produces toxicity is very
small, necessitating close monitoring.
3. Which of the following describes the ‘First-Pass Effect’?
A. The binding of a drug to plasma proteins like albumin.
B. The rapid excretion of a drug by the kidneys.
C. The initial metabolism of a drug in the liver before it reaches systemic circulation.
D. The distribution of a drug to the brain via the blood-brain barrier.
Answer: C
Conceptual Explanation: The first-pass effect occurs when an oral drug is absorbed from
the GI tract and enters the portal circulation, where the liver metabolizes a significant
portion before it reaches the rest of the body.
4. A patient is taking Warfarin and starts a new medication that is a known CYP450 enzyme
inhibitor. What is the likely result?
A. Decreased serum levels of Warfarin.
, B. Increased serum levels of Warfarin, increasing bleeding risk.
C. No change in Warfarin levels.
D. Decreased INR levels.
Answer: B
Conceptual Explanation: Inhibitors of the Cytochrome P450 system slow down the
metabolism of substrate drugs (like Warfarin), leading to increased drug levels and an
increased risk of toxicity or side effects.
5. Which drug class is considered first-line for a patient with hypertension and a history of
Type 2 Diabetes?
A. Beta-Blockers
B. Calcium Channel Blockers
C. Loop Diuretics
D. ACE Inhibitors
Answer: D
Conceptual Explanation: ACE Inhibitors are preferred in diabetic patients because they
provide renoprotective effects and help prevent or slow the progression of diabetic
nephropathy.
