NURSING · OBJECTIVE ASSESSMENT
NURS 251 Pharmacology Module 10 — Complete
Official Exam
Portage Learning
50 Questions Full Rationales Verified Answers
50 5 100%
QUESTIONS SECTIONS RATIONALES
Complete coverage Core exam domains Every answer explained
WHAT THIS COVERS
01 Pharmacokinetics & Pharmacodynamics
02 Medication Administration & Safety
03 Cardiovascular & Respiratory Medications
04 Endocrine, GI & Renal Medications
05 Anti-Infectives, CNS & Special Populations
ABOUT THIS ASSESSMENT
Build mastery in nursing pharmacology — from pharmacokinetics and
pharmacodynamics to medication administration and safety,
cardiovascular and respiratory agents, endocrine, GI, and renal
medications, anti-infectives, CNS drugs, and special population
considerations. This original study bank targets application skills.
PASSING SCORE LEVEL FORMAT
80% Intermediate (Nursing Course) Application / Analysis
STUVIA ACTUAL EXAM Page 1
, SECTION 1: Pharmacokinetics & Pharmacodynamics
Q1. A nurse is reviewing a medication order for an older adult with reduced hepatic function. The nurse anticipates that the
drug’s half-life may be prolonged because of decreased:
A. Hepatic metabolism and first-pass clearance of the medication.
B. Renal filtration of unbound drug only.
C. Gastric emptying time alone.
D. Plasma protein binding capacity exclusively.
Correct Answer: A
Rationale:
Hepatic impairment reduces metabolic capacity and first-pass effect, often prolonging half-life and increasing exposure. Renal filtration and gastric
emptying are separate processes.
Q2. A patient receives a drug that is highly protein-bound. The nurse understands that a second highly protein-bound drug
may:
A. Have no effect on free drug levels.
B. Increase free (active) concentrations of both drugs by competing for binding sites.
C. Always decrease the therapeutic effect of the first drug.
D. Eliminate the need for any dose adjustment.
Correct Answer: B
Rationale:
Competition for plasma protein binding can raise the free fraction of one or both drugs, potentially increasing pharmacologic effect or toxicity.
Q3. A medication is described as having a narrow therapeutic index. The nursing implication is that:
A. Small differences in dose or blood concentration may lead to serious therapeutic failure or toxicity, requiring careful monitoring.
B. The drug can be given without laboratory monitoring.
C. The drug is always safer than wide-index agents.
D. Overdose is impossible with this class of medication.
Correct Answer: A
Rationale:
Narrow therapeutic index drugs require close monitoring because the margin between effective and toxic concentrations is small.
Q4. A patient is prescribed a prodrug. The nurse correctly explains that a prodrug is:
A. An inactive compound that must be metabolically converted to the active form.
B. Already fully active upon administration and never metabolized.
C. Always administered by the intravenous route only.
D. Unable to cross any cell membranes.
Correct Answer: A
Rationale:
Prodrugs are inactive until biotransformed (often in the liver) into the active metabolite.
STUVIA ACTUAL EXAM · Page 2