NR 565 MIDTERM PRACTICE QUESTIONS | ADVANCED PHARMACOLOGY EXAM REVIEW |
STUDY GUIDE & ANSWERS 2026/2027
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.
A provider practicing under limited prescriptive authority attempts to prescribe a Schedule II
medication independently. What is the most appropriate analysis?
A. This is appropriate in all states
B. It is acceptable if the patient consents
C. It may violate state law and professional regulations
D. It is appropriate if the medication is not refilled - correct answer ✔✔C
Rationale: Limited prescriptive authority restricts medication classes or requires supervision.
Prescribing outside scope may violate regulatory standards.
Before prescribing a beta-blocker to a patient with asthma, which prescribing consideration is
most critical?
A. Medication cost
B. Drug absorption rate
C. Comorbid conditions
D. Route of administration - correct answer ✔✔C
,Rationale: Asthma is a key comorbidity because beta-blockers may worsen bronchospasm.
Patient-specific factors are essential in safe prescribing.
An elderly patient with low albumin is prescribed a highly protein-bound drug. What is the likely
outcome?
A. Decreased therapeutic effect
B. Increased free drug concentration
C. Reduced half-life
D. Faster renal clearance - correct answer ✔✔B
Rationale: Lower albumin increases free (active) drug levels, increasing risk of toxicity.
A neonate receives a medication primarily cleared renally. Which outcome is most likely?
A. Rapid drug elimination
B. Drug accumulation
C. No change in half-life
D. Increased metabolism - correct answer ✔✔B
Rationale: Neonates have immature renal function, leading to slower clearance and potential
accumulation.
A drug with a short half-life is prescribed once daily. What is the likely consequence?
A. Drug toxicity
B. Subtherapeutic levels before next dose
C. Increased protein binding
D. Prolonged steady-state levels - correct answer ✔✔B
Rationale: Short half-life drugs require more frequent dosing to maintain therapeutic
concentrations.
,A patient taking warfarin is prescribed an enzyme inhibitor. What is the expected
pharmacokinetic effect?
A. Reduced drug concentration
B. Increased metabolism
C. Elevated warfarin levels and bleeding risk
D. Decreased half-life - correct answer ✔✔C
Rationale: Enzyme inhibition slows metabolism, increasing drug levels and risk of adverse
effects.
Which scenario best represents a pharmacodynamic drug interaction?
A. Antacid reducing antibiotic absorption
B. Two CNS depressants increasing sedation
C. Liver enzyme induction decreasing drug levels
D. Renal impairment reducing drug excretion - correct answer ✔✔B
Rationale: Pharmacodynamic interactions occur when drugs have additive or opposing
physiological effects.
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
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
STUDY GUIDE & ANSWERS 2026/2027
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.
A provider practicing under limited prescriptive authority attempts to prescribe a Schedule II
medication independently. What is the most appropriate analysis?
A. This is appropriate in all states
B. It is acceptable if the patient consents
C. It may violate state law and professional regulations
D. It is appropriate if the medication is not refilled - correct answer ✔✔C
Rationale: Limited prescriptive authority restricts medication classes or requires supervision.
Prescribing outside scope may violate regulatory standards.
Before prescribing a beta-blocker to a patient with asthma, which prescribing consideration is
most critical?
A. Medication cost
B. Drug absorption rate
C. Comorbid conditions
D. Route of administration - correct answer ✔✔C
,Rationale: Asthma is a key comorbidity because beta-blockers may worsen bronchospasm.
Patient-specific factors are essential in safe prescribing.
An elderly patient with low albumin is prescribed a highly protein-bound drug. What is the likely
outcome?
A. Decreased therapeutic effect
B. Increased free drug concentration
C. Reduced half-life
D. Faster renal clearance - correct answer ✔✔B
Rationale: Lower albumin increases free (active) drug levels, increasing risk of toxicity.
A neonate receives a medication primarily cleared renally. Which outcome is most likely?
A. Rapid drug elimination
B. Drug accumulation
C. No change in half-life
D. Increased metabolism - correct answer ✔✔B
Rationale: Neonates have immature renal function, leading to slower clearance and potential
accumulation.
A drug with a short half-life is prescribed once daily. What is the likely consequence?
A. Drug toxicity
B. Subtherapeutic levels before next dose
C. Increased protein binding
D. Prolonged steady-state levels - correct answer ✔✔B
Rationale: Short half-life drugs require more frequent dosing to maintain therapeutic
concentrations.
,A patient taking warfarin is prescribed an enzyme inhibitor. What is the expected
pharmacokinetic effect?
A. Reduced drug concentration
B. Increased metabolism
C. Elevated warfarin levels and bleeding risk
D. Decreased half-life - correct answer ✔✔C
Rationale: Enzyme inhibition slows metabolism, increasing drug levels and risk of adverse
effects.
Which scenario best represents a pharmacodynamic drug interaction?
A. Antacid reducing antibiotic absorption
B. Two CNS depressants increasing sedation
C. Liver enzyme induction decreasing drug levels
D. Renal impairment reducing drug excretion - correct answer ✔✔B
Rationale: Pharmacodynamic interactions occur when drugs have additive or opposing
physiological effects.
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
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
