NURSING PHARMACOLOGY MCCUISTION 12TH
EDITION FINAL EXAM STUDY GUIDE COMPLETE
QUESTION BANK BUNDLE (VERIFIED ANSWERS &
RATIONALES)
This comprehensive master practice bank delivers high-yield multiple-
choice questions meticulously mapped to the 12th edition of McCuistion’s
nursing pharmacology textbook. Every question features explicit italicized
answers alongside detailed, bold-italicized clinical rationales to help nursing
students ace their exams, master dosage calculations, and maximize
retention. It serves as the ultimate premium study tool for students
preparing for nursing pharmacology course finals, custom classroom
quizzes, and high-stakes NCLEX examinations.
Question 1
A patient is prescribed an oral medication that
undergoes extensive hepatic first-pass
metabolism. What clinical implication should the
nurse anticipate?
A) The drug will have a rapid onset of action
because it bypasses systemic circulation.
B) The oral dose must be considerably higher
than the intravenous dose to achieve a
therapeutic effect.
C) The drug will accumulate in lipid tissues,
prolonging its half-life.
D) Renal clearance will accelerate to
compensate for hepatic extraction.
,Answer: B
Rationale: First-pass metabolism occurs
when an oral drug is absorbed from the GI
tract into the portal vein and metabolized by
the liver before reaching systemic
circulation. This inactivates a large portion
of the drug, requiring a much higher oral
dose compared to an intravenous dose,
which enters systemic circulation directly
with 100% bioavailability.
Question 2
A medication has a half-life of 6 hours. If a
patient receives a single intravenous bolus
dose of 400 mg, approximately how much of
the drug remains in the body after 18 hours?
A) 200 mg
B) 100 mg
C) 50 mg
D) 25 mg
Answer: C
Rationale: In 18 hours, three half-lives
elapse (18 divided by 6 equals 3). After one
half-life (6 hours), 200 mg remains. After two
,half-lives (12 hours), 100 mg remains. After
three half-lives (18 hours), 50 mg remains.
Question 3
A patient with severe hypoalbuminemia is
prescribed a medication that is normally 95%
protein-bound. What is the priority nursing
assessment?
A) Monitor for delayed onset of therapeutic drug
effects.
B) Assess for rapid renal excretion and
therapeutic failure.
C) Monitor closely for signs of drug toxicity due
to an increased fraction of free drug.
D) Evaluate the patient for an immediate
allergic or anaphylactic response.
Answer: C
Rationale: Only free, unbound drug
molecules are pharmacologically active and
capable of binding to tissue receptors.
When a patient has low albumin levels, there
are fewer plasma protein binding sites
available, resulting in a higher percentage of
free, active drug circulating in the blood,
, which significantly elevates the risk of
toxicity.
Question 4
The healthcare provider orders a medication for
a patient with chronic kidney disease (creatinine
clearance < 25 mL/min). The drug is primarily
eliminated unchanged by the kidneys. Which
adjustment should the nurse anticipate?
A) Decreasing the individual dosage or
extending the dosing interval.
B) Increasing the initial loading dose to
overcome poor filtration.
C) Switching the route of administration to
subcutaneous.
D) Administering the medication with an antacid
to promote tubular secretion.
Answer: A
Rationale: Impaired renal function slows
down drug clearance, causing the drug to
accumulate in the body over time. To
prevent toxic buildup, the nurse must
anticipate either reducing the individual
EDITION FINAL EXAM STUDY GUIDE COMPLETE
QUESTION BANK BUNDLE (VERIFIED ANSWERS &
RATIONALES)
This comprehensive master practice bank delivers high-yield multiple-
choice questions meticulously mapped to the 12th edition of McCuistion’s
nursing pharmacology textbook. Every question features explicit italicized
answers alongside detailed, bold-italicized clinical rationales to help nursing
students ace their exams, master dosage calculations, and maximize
retention. It serves as the ultimate premium study tool for students
preparing for nursing pharmacology course finals, custom classroom
quizzes, and high-stakes NCLEX examinations.
Question 1
A patient is prescribed an oral medication that
undergoes extensive hepatic first-pass
metabolism. What clinical implication should the
nurse anticipate?
A) The drug will have a rapid onset of action
because it bypasses systemic circulation.
B) The oral dose must be considerably higher
than the intravenous dose to achieve a
therapeutic effect.
C) The drug will accumulate in lipid tissues,
prolonging its half-life.
D) Renal clearance will accelerate to
compensate for hepatic extraction.
,Answer: B
Rationale: First-pass metabolism occurs
when an oral drug is absorbed from the GI
tract into the portal vein and metabolized by
the liver before reaching systemic
circulation. This inactivates a large portion
of the drug, requiring a much higher oral
dose compared to an intravenous dose,
which enters systemic circulation directly
with 100% bioavailability.
Question 2
A medication has a half-life of 6 hours. If a
patient receives a single intravenous bolus
dose of 400 mg, approximately how much of
the drug remains in the body after 18 hours?
A) 200 mg
B) 100 mg
C) 50 mg
D) 25 mg
Answer: C
Rationale: In 18 hours, three half-lives
elapse (18 divided by 6 equals 3). After one
half-life (6 hours), 200 mg remains. After two
,half-lives (12 hours), 100 mg remains. After
three half-lives (18 hours), 50 mg remains.
Question 3
A patient with severe hypoalbuminemia is
prescribed a medication that is normally 95%
protein-bound. What is the priority nursing
assessment?
A) Monitor for delayed onset of therapeutic drug
effects.
B) Assess for rapid renal excretion and
therapeutic failure.
C) Monitor closely for signs of drug toxicity due
to an increased fraction of free drug.
D) Evaluate the patient for an immediate
allergic or anaphylactic response.
Answer: C
Rationale: Only free, unbound drug
molecules are pharmacologically active and
capable of binding to tissue receptors.
When a patient has low albumin levels, there
are fewer plasma protein binding sites
available, resulting in a higher percentage of
free, active drug circulating in the blood,
, which significantly elevates the risk of
toxicity.
Question 4
The healthcare provider orders a medication for
a patient with chronic kidney disease (creatinine
clearance < 25 mL/min). The drug is primarily
eliminated unchanged by the kidneys. Which
adjustment should the nurse anticipate?
A) Decreasing the individual dosage or
extending the dosing interval.
B) Increasing the initial loading dose to
overcome poor filtration.
C) Switching the route of administration to
subcutaneous.
D) Administering the medication with an antacid
to promote tubular secretion.
Answer: A
Rationale: Impaired renal function slows
down drug clearance, causing the drug to
accumulate in the body over time. To
prevent toxic buildup, the nurse must
anticipate either reducing the individual
