ADVANCED PHARMACOLOGY FOR
NURSING (NUR 376) COMPREHENSIVE
QUESTIONS AND ANSWERS
1. When administering aminoglycosides such as Gentamicin to a patient with renal
impairment, which pharmacokinetic parameter is primarily affected and requires the most
careful monitoring?
A. Hepatic metabolism rate
B. Plasma protein binding
C. Gastrointestinal absorption
D. Renal clearance and half-life
Answer: D
Conceptual Explanation: Aminoglycosides are primarily excreted unchanged by the
kidneys. In renal impairment, the half-life is significantly prolonged, increasing the risk of
ototoxicity and nephrotoxicity, necessitating trough level monitoring.
2. A patient is receiving Digoxin for heart failure. Which electrolyte imbalance most
significantly increases the risk of developing life-threatening digitalis toxicity?
A. Hypokalemia
, B. Hypercalcemia
C. Hypernatremia
D. Hypomagnesemia
Answer: A
Conceptual Explanation: Hypokalemia enhances digoxin’s action because potassium and
digoxin compete for the same binding site on the Na+/K+ ATPase pump. Lower potassium
levels allow more digoxin to bind, leading to toxicity.
3. When teaching a patient about Lithium Carbonate therapy for bipolar disorder, which
dietary instruction is critical to prevent toxicity?
A. Increase caffeine consumption to improve alertness
B. Strictly limit potassium-rich foods
C. Follow a low-sodium, DASH diet
D. Maintain consistent sodium intake
Answer: D
Conceptual Explanation: Lithium is handled by the kidneys similarly to sodium. If sodium
levels drop or the patient is dehydrated, the kidneys conserve lithium in place of sodium,
leading to toxic serum levels.
NURSING (NUR 376) COMPREHENSIVE
QUESTIONS AND ANSWERS
1. When administering aminoglycosides such as Gentamicin to a patient with renal
impairment, which pharmacokinetic parameter is primarily affected and requires the most
careful monitoring?
A. Hepatic metabolism rate
B. Plasma protein binding
C. Gastrointestinal absorption
D. Renal clearance and half-life
Answer: D
Conceptual Explanation: Aminoglycosides are primarily excreted unchanged by the
kidneys. In renal impairment, the half-life is significantly prolonged, increasing the risk of
ototoxicity and nephrotoxicity, necessitating trough level monitoring.
2. A patient is receiving Digoxin for heart failure. Which electrolyte imbalance most
significantly increases the risk of developing life-threatening digitalis toxicity?
A. Hypokalemia
, B. Hypercalcemia
C. Hypernatremia
D. Hypomagnesemia
Answer: A
Conceptual Explanation: Hypokalemia enhances digoxin’s action because potassium and
digoxin compete for the same binding site on the Na+/K+ ATPase pump. Lower potassium
levels allow more digoxin to bind, leading to toxicity.
3. When teaching a patient about Lithium Carbonate therapy for bipolar disorder, which
dietary instruction is critical to prevent toxicity?
A. Increase caffeine consumption to improve alertness
B. Strictly limit potassium-rich foods
C. Follow a low-sodium, DASH diet
D. Maintain consistent sodium intake
Answer: D
Conceptual Explanation: Lithium is handled by the kidneys similarly to sodium. If sodium
levels drop or the patient is dehydrated, the kidneys conserve lithium in place of sodium,
leading to toxic serum levels.
