NUR2474 PHARMACOLOGY
COMPREHENSIVE EXAM STUDY GUIDE
(LATEST 2026/ 2027 UPDATE)
QUESTIONS AND 100% CORRECT
VERIFIED ANSWERS| GRADE A+
1. A patient is prescribed a drug with a high volume of distribution (Vd). What does this
characteristic indicate about the drug’s behavior in the body?
A. The drug is primarily contained within the vascular space.
B. The drug is rapidly excreted by the kidneys.
C. The drug is extensively distributed into tissues and body fat.
D. The drug has a high degree of protein binding.
Answer: C
Conceptual Explanation: A high Vd indicates that the drug is distributed widely
throughout the body, often sequestered in tissues or fat, rather than remaining in the
plasma.
,2. When administering a medication that undergoes a significant ‘first-pass effect,’ which
route of administration should the nurse expect to bypass this process?
A. Oral
B. Rectal suppository (lower portion)
C. Nasogastric tube
D. Sublingual
Answer: D
Conceptual Explanation: Sublingual administration allows for direct absorption into the
systemic circulation, bypassing the portal vein and liver metabolism (first-pass effect).
3. A patient has a low albumin level. How does this affect the pharmacokinetics of a drug that
is highly protein-bound?
A. The drug’s effect will be decreased due to lack of transport.
B. The drug will be metabolized more slowly.
C. There will be an increase in the free, active drug in the bloodstream.
D. The drug will be unable to cross the blood-brain barrier.
Answer: C
Conceptual Explanation: Highly protein-bound drugs compete for albumin. Low albumin
levels mean fewer binding sites, leading to more free (active) drug and potential toxicity.
, 4. A drug has a half-life of 4 hours. If 100 mg is administered, how much of the drug remains
in the body after 12 hours?
A. 12.5 mg
B. 25 mg
C. 6.25 mg
D. 50 mg
Answer: A
Conceptual Explanation: After 4 hours (1 half-life): 50mg. After 8 hours (2 half-lives):
25mg. After 12 hours (3 half-lives): 12.5mg.
5. The nurse is monitoring a patient receiving Digoxin. Which electrolyte imbalance most
significantly increases the risk of Digoxin toxicity?
A. Hypercalcemia
B. Hypermagnesemia
C. Hyponatremia
D. Hypokalemia
Answer: D
Conceptual Explanation: Potassium competes with Digoxin for binding sites on the
Na+/K+ ATPase pump. Low potassium allows more Digoxin to bind, increasing toxicity
risk.
COMPREHENSIVE EXAM STUDY GUIDE
(LATEST 2026/ 2027 UPDATE)
QUESTIONS AND 100% CORRECT
VERIFIED ANSWERS| GRADE A+
1. A patient is prescribed a drug with a high volume of distribution (Vd). What does this
characteristic indicate about the drug’s behavior in the body?
A. The drug is primarily contained within the vascular space.
B. The drug is rapidly excreted by the kidneys.
C. The drug is extensively distributed into tissues and body fat.
D. The drug has a high degree of protein binding.
Answer: C
Conceptual Explanation: A high Vd indicates that the drug is distributed widely
throughout the body, often sequestered in tissues or fat, rather than remaining in the
plasma.
,2. When administering a medication that undergoes a significant ‘first-pass effect,’ which
route of administration should the nurse expect to bypass this process?
A. Oral
B. Rectal suppository (lower portion)
C. Nasogastric tube
D. Sublingual
Answer: D
Conceptual Explanation: Sublingual administration allows for direct absorption into the
systemic circulation, bypassing the portal vein and liver metabolism (first-pass effect).
3. A patient has a low albumin level. How does this affect the pharmacokinetics of a drug that
is highly protein-bound?
A. The drug’s effect will be decreased due to lack of transport.
B. The drug will be metabolized more slowly.
C. There will be an increase in the free, active drug in the bloodstream.
D. The drug will be unable to cross the blood-brain barrier.
Answer: C
Conceptual Explanation: Highly protein-bound drugs compete for albumin. Low albumin
levels mean fewer binding sites, leading to more free (active) drug and potential toxicity.
, 4. A drug has a half-life of 4 hours. If 100 mg is administered, how much of the drug remains
in the body after 12 hours?
A. 12.5 mg
B. 25 mg
C. 6.25 mg
D. 50 mg
Answer: A
Conceptual Explanation: After 4 hours (1 half-life): 50mg. After 8 hours (2 half-lives):
25mg. After 12 hours (3 half-lives): 12.5mg.
5. The nurse is monitoring a patient receiving Digoxin. Which electrolyte imbalance most
significantly increases the risk of Digoxin toxicity?
A. Hypercalcemia
B. Hypermagnesemia
C. Hyponatremia
D. Hypokalemia
Answer: D
Conceptual Explanation: Potassium competes with Digoxin for binding sites on the
Na+/K+ ATPase pump. Low potassium allows more Digoxin to bind, increasing toxicity
risk.
