NR 508 ADVANCED PHARMACOLOGY
EXAM QUESTION AND ANSWERS
1. A patient with chronic kidney disease (CKD) requires an adjustment in drug dosing. Which
pharmacokinetic parameter is primarily affected?
A. Absorption
B. Distribution
C. Excretion
D. Metabolism
Answer: C
Conceptual Explanation: Excretion is the primary pharmacokinetic process affected by
renal impairment, as the kidneys are responsible for filtering and removing drug
metabolites from the body.
2. Which of the following describes the ‘first-pass effect’ in pharmacology?
A. The rapid distribution of a drug to highly perfused organs.
B. The metabolic breakdown of an oral drug in the liver before reaching systemic
circulation.
,C. The initial binding of a drug to plasma proteins.
D. The excretion of a drug through the biliary system.
Answer: B
Conceptual Explanation: The first-pass effect refers to the concentration of a drug being
greatly reduced before it reaches the systemic circulation, typically occurring in the liver
after oral administration.
3. A patient is prescribed an ACE inhibitor for hypertension. Which electrolyte abnormality
should the provider monitor for?
A. Hypokalemia
B. Hyperkalemia
C. Hypercalcemia
D. Hyponatremia
Answer: B
Conceptual Explanation: ACE inhibitors inhibit aldosterone secretion, which can lead to
the retention of potassium, resulting in hyperkalemia.
4. When prescribing Amiodarone, which organ system requires regular monitoring due to
potential long-term toxicity?
A. Renal
B. Pulmonary
, C. Musculoskeletal
D. Integumentary
Answer: B
Conceptual Explanation: Amiodarone is associated with serious pulmonary toxicity,
including interstitial pneumonitis and fibrosis, requiring regular chest X-rays and PFTs.
5. A 65-year-old male is started on Warfarin. Which of the following lab values is the most
appropriate for monitoring its therapeutic effect?
A. International Normalized Ratio (INR)
B. Platelet count
C. Activated Partial Thromboplastin Time (aPTT)
D. Bleeding time
Answer: A
Conceptual Explanation: INR is the standard laboratory value used to monitor the
effectiveness and safety of Warfarin therapy.
6. Which mechanism of action characterizes Class II antiarrhythmic drugs?
A. Sodium channel blockade
B. Beta-adrenergic blockade
C. Calcium channel blockade
EXAM QUESTION AND ANSWERS
1. A patient with chronic kidney disease (CKD) requires an adjustment in drug dosing. Which
pharmacokinetic parameter is primarily affected?
A. Absorption
B. Distribution
C. Excretion
D. Metabolism
Answer: C
Conceptual Explanation: Excretion is the primary pharmacokinetic process affected by
renal impairment, as the kidneys are responsible for filtering and removing drug
metabolites from the body.
2. Which of the following describes the ‘first-pass effect’ in pharmacology?
A. The rapid distribution of a drug to highly perfused organs.
B. The metabolic breakdown of an oral drug in the liver before reaching systemic
circulation.
,C. The initial binding of a drug to plasma proteins.
D. The excretion of a drug through the biliary system.
Answer: B
Conceptual Explanation: The first-pass effect refers to the concentration of a drug being
greatly reduced before it reaches the systemic circulation, typically occurring in the liver
after oral administration.
3. A patient is prescribed an ACE inhibitor for hypertension. Which electrolyte abnormality
should the provider monitor for?
A. Hypokalemia
B. Hyperkalemia
C. Hypercalcemia
D. Hyponatremia
Answer: B
Conceptual Explanation: ACE inhibitors inhibit aldosterone secretion, which can lead to
the retention of potassium, resulting in hyperkalemia.
4. When prescribing Amiodarone, which organ system requires regular monitoring due to
potential long-term toxicity?
A. Renal
B. Pulmonary
, C. Musculoskeletal
D. Integumentary
Answer: B
Conceptual Explanation: Amiodarone is associated with serious pulmonary toxicity,
including interstitial pneumonitis and fibrosis, requiring regular chest X-rays and PFTs.
5. A 65-year-old male is started on Warfarin. Which of the following lab values is the most
appropriate for monitoring its therapeutic effect?
A. International Normalized Ratio (INR)
B. Platelet count
C. Activated Partial Thromboplastin Time (aPTT)
D. Bleeding time
Answer: A
Conceptual Explanation: INR is the standard laboratory value used to monitor the
effectiveness and safety of Warfarin therapy.
6. Which mechanism of action characterizes Class II antiarrhythmic drugs?
A. Sodium channel blockade
B. Beta-adrenergic blockade
C. Calcium channel blockade
