NR 565 MIDTERM PRACTICE EXAM PREP CHAMBERLAIN COLLEGE OF
NURSING NEWEST 2026/2027 ACTUAL EXAM COMPLETE 150
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
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A pregnant patient in her first trimester requires treatment. Which principle
should guide therapy?
A. Avoid all medications
B. Use category X drugs cautiously
C. Balance maternal benefit against fetal risk
D. Prescribe only herbal supplements - Correct Answer-C
Rationale: Risk-benefit assessment is central, especially in the first trimester when
teratogenic risk is highest.
Which medication is contraindicated during pregnancy?
A. Insulin
B. Penicillin
C. Isotretinoin
D. Cephalexin - Correct Answer-C
Rationale: Isotretinoin is teratogenic and classified as pregnancy category X.
An elderly patient prescribed diphenhydramine develops confusion and urinary
retention. What explains this?
A. Reduced renal clearance
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B. Strong anticholinergic effects
C. Increased absorption
D. Decreased protein binding - Correct Answer-B
Rationale: Diphenhydramine is on the Beers Criteria due to anticholinergic risks in
older adults.
Which prescribing strategy best minimizes adverse drug reactions in older adults?
A. Standard adult dosing
B. Start high and taper
C. Start low and titrate slowly
D. Avoid monitoring unless symptoms occur - Correct Answer-C
Rationale: "Start low, go slow" reduces toxicity risk in elderly patients.
An elderly patient taking opioids is also prescribed a benzodiazepine. What is the
major concern?
A. Reduced analgesia
B. Hepatic failure
C. Increased respiratory depression and fall risk
D. Faster metabolism - Correct Answer-C
Rationale: Combining CNS depressants increases risk of sedation, respiratory
depression, and falls.
A patient with cirrhosis requires medication. What adjustment is most
appropriate?
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A. Increase dose
B. Shorten dosing interval
C. Reduce dose and monitor closely
D. Assume normal metabolism - Correct Answer-C
Rationale: Liver disease impairs metabolism, increasing toxicity risk.
A hydrophilic drug is given to an elderly patient with decreased total body water.
What is the expected effect?
A. Lower plasma concentration
B. Increased plasma concentration
C. Larger volume of distribution
D. Shorter half-life - Correct Answer-B
Rationale: Less body water concentrates hydrophilic drugs in plasma.
Which situation requires renal dose adjustment?
A. Metformin in a patient with low GFR
B. Loratadine in healthy adult
C. Topical hydrocortisone
D. Penicillin in normal renal function - Correct Answer-A
Rationale: Metformin requires dose adjustment based on renal function.
A drug induces hepatic enzymes. What is the likely impact on a co-administered
medication?
A. Increased toxicity
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B. Decreased efficacy
C. No change
D. Reduced excretion - Correct Answer-B
Rationale: Enzyme induction increases metabolism, lowering drug levels.
A provider prescribes a medication with a boxed warning. What is the priority
action?
A. Ignore if commonly prescribed
B. Inform the patient of serious risks and monitor appropriately
C. Reduce dose without discussion
D. Substitute automatically - Correct Answer-B
Rationale: Boxed warnings highlight serious risks and require informed discussion
and monitoring.
A nurse practitioner practices in a state granting full prescriptive authority. Which
action best reflects this authority?
A. Prescribing only noncontrolled medications under physician supervision
B. Prescribing Schedule II-V medications independently
C. Prescribing only medications listed in institutional protocols
D. Recommending over-the-counter therapies only - Correct Answer-B
Rationale: Full prescriptive authority allows providers to prescribe all medications,
including controlled substances, without mandated supervision.
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