COMPREHENSIVE PRACTICE EXAM
PHARMACOTHERAPEUTICS FOR ADVANCED
PRACTICE NURSE PRESCRIBERS, 6TH EDITION
WOO & ROBINSON | CHAPTERS 1-57 | 100
QUESTIONS WITH VERIFIED ANSWERS &
RATIONALES
SECTION 1: FOUNDATIONS (Chapters 1-10)
Question 1 (Chapter 1: Role of APRN as Prescriber)
Nurse practitioner prescriptive authority is primarily regulated by:
A. The U.S. Drug Enforcement Administration (DEA)
B. The FDA
C. The State Board of Nursing
D. The National Council of State Boards of Nursing
Answer: C
Rationale: Prescriptive authority for APRNs is granted and regulated
at the state level by each state's Board of Nursing. The DEA regulates
controlled substance scheduling and registration but does not grant
prescriptive authority.
,Question 2 (Chapter 2: Basic Pharmacology Principles)
A drug with a half-life of 4 hours will reach steady state in
approximately:
A. 8 hours
B. 12 hours
C. 20 hours
D. 40 hours
Answer: C
Rationale: Steady state is achieved after approximately 4-5 half-
lives. 4 half-lives = 16 hours; 5 half-lives = 20 hours. Therefore, 20
hours is the most accurate answer.
Question 3 (Chapter 3: Rational Drug Selection)
When selecting a medication for a patient, the APRN should FIRST:
A. Check the patient's insurance formulary
B. Identify the specific diagnosis and desired therapeutic outcome
C. Prescribe the most expensive medication for better efficacy
D. Consult a pharmaceutical representative
Answer: B
Rationale: Rational drug selection begins with accurate diagnosis and
clear therapeutic goals. Formulary considerations and cost come after
identifying the appropriate drug class and agent.
,Question 4 (Chapter 4: Legal & Professional Issues)
An APRN practicing outside their legal scope of practice is most at risk
for:
A. Increased autonomy
B. Professional negligence claims
C. Higher reimbursement
D. DEA registration renewal
Answer: B
Rationale: Practicing beyond one's legal scope creates liability for
professional negligence (malpractice). State Nurse Practice Acts
define legal boundaries, and violations can result in disciplinary action,
license loss, and legal liability.
Question 5 (Chapter 5: Adverse Drug Reactions)
A patient develops hives and respiratory distress within 30 minutes of
taking penicillin. This is classified as:
A. Type A (augmented) reaction
B. Type C (continuous) reaction
C. Type B (bizarre) reaction – Type I hypersensitivity
D. Type D (delayed) reaction
Answer: C
, Rationale: This describes an immediate hypersensitivity (Type I)
reaction, which is unpredictable, not dose-dependent, and immune-
mediated. This is a Type B (bizarre) adverse drug reaction.
Question 6 (Chapter 6: Pharmacogenomics)
A patient with a CYP2C19 loss-of-function variant is prescribed
clopidogrel. The expected outcome is:
A. Increased antiplatelet effect
B. Reduced antiplatelet effect and increased cardiovascular risk
C. Normal response
D. Increased bleeding risk
Answer: B
Rationale: Clopidogrel is a prodrug requiring CYP2C19 activation.
Loss-of-function variants result in poor conversion to active
metabolite, leading to reduced antiplatelet effect and higher risk of
stent thrombosis and cardiovascular events.
Question 7 (Chapter 7: Nutrition & Nutraceuticals)
A patient taking warfarin reports starting a high-dose fish oil
supplement. The NP should:
A. Stop the warfarin immediately
B. Recommend doubling the warfarin dose
C. Monitor INR more frequently and watch for bleeding signs
D. Tell the patient fish oil has no interaction
PHARMACOTHERAPEUTICS FOR ADVANCED
PRACTICE NURSE PRESCRIBERS, 6TH EDITION
WOO & ROBINSON | CHAPTERS 1-57 | 100
QUESTIONS WITH VERIFIED ANSWERS &
RATIONALES
SECTION 1: FOUNDATIONS (Chapters 1-10)
Question 1 (Chapter 1: Role of APRN as Prescriber)
Nurse practitioner prescriptive authority is primarily regulated by:
A. The U.S. Drug Enforcement Administration (DEA)
B. The FDA
C. The State Board of Nursing
D. The National Council of State Boards of Nursing
Answer: C
Rationale: Prescriptive authority for APRNs is granted and regulated
at the state level by each state's Board of Nursing. The DEA regulates
controlled substance scheduling and registration but does not grant
prescriptive authority.
,Question 2 (Chapter 2: Basic Pharmacology Principles)
A drug with a half-life of 4 hours will reach steady state in
approximately:
A. 8 hours
B. 12 hours
C. 20 hours
D. 40 hours
Answer: C
Rationale: Steady state is achieved after approximately 4-5 half-
lives. 4 half-lives = 16 hours; 5 half-lives = 20 hours. Therefore, 20
hours is the most accurate answer.
Question 3 (Chapter 3: Rational Drug Selection)
When selecting a medication for a patient, the APRN should FIRST:
A. Check the patient's insurance formulary
B. Identify the specific diagnosis and desired therapeutic outcome
C. Prescribe the most expensive medication for better efficacy
D. Consult a pharmaceutical representative
Answer: B
Rationale: Rational drug selection begins with accurate diagnosis and
clear therapeutic goals. Formulary considerations and cost come after
identifying the appropriate drug class and agent.
,Question 4 (Chapter 4: Legal & Professional Issues)
An APRN practicing outside their legal scope of practice is most at risk
for:
A. Increased autonomy
B. Professional negligence claims
C. Higher reimbursement
D. DEA registration renewal
Answer: B
Rationale: Practicing beyond one's legal scope creates liability for
professional negligence (malpractice). State Nurse Practice Acts
define legal boundaries, and violations can result in disciplinary action,
license loss, and legal liability.
Question 5 (Chapter 5: Adverse Drug Reactions)
A patient develops hives and respiratory distress within 30 minutes of
taking penicillin. This is classified as:
A. Type A (augmented) reaction
B. Type C (continuous) reaction
C. Type B (bizarre) reaction – Type I hypersensitivity
D. Type D (delayed) reaction
Answer: C
, Rationale: This describes an immediate hypersensitivity (Type I)
reaction, which is unpredictable, not dose-dependent, and immune-
mediated. This is a Type B (bizarre) adverse drug reaction.
Question 6 (Chapter 6: Pharmacogenomics)
A patient with a CYP2C19 loss-of-function variant is prescribed
clopidogrel. The expected outcome is:
A. Increased antiplatelet effect
B. Reduced antiplatelet effect and increased cardiovascular risk
C. Normal response
D. Increased bleeding risk
Answer: B
Rationale: Clopidogrel is a prodrug requiring CYP2C19 activation.
Loss-of-function variants result in poor conversion to active
metabolite, leading to reduced antiplatelet effect and higher risk of
stent thrombosis and cardiovascular events.
Question 7 (Chapter 7: Nutrition & Nutraceuticals)
A patient taking warfarin reports starting a high-dose fish oil
supplement. The NP should:
A. Stop the warfarin immediately
B. Recommend doubling the warfarin dose
C. Monitor INR more frequently and watch for bleeding signs
D. Tell the patient fish oil has no interaction
