Wisconsin Advanced Nurse Prescriber (ANP)
Ultimate Practice Exam: 2026–2027
50-Question Multiple-Choice Study Guide with Answers and Rationales
Based on Wis. Stat. § 441.16, Admin Code Chapter N 8, DEA Regulations, and 2025 Act 17
Instructions
This study guide contains 50 multiple-choice questions covering all domains tested on the Wisconsin ANP
certification exam. Each question includes the correct answer (highlighted in bold cyan) followed by a rationale
explaining the clinical and legal reasoning. Use this guide to assess your knowledge and identify areas for further
study.
Domain I: Advanced Pharmacology (Questions 1–10)
1. A 65-year-old patient taking warfarin for atrial fibrillation is prescribed fluconazole for a fungal infection. What
is the most likely clinical consequence?
A. Decreased INR due to CYP2C19 induction B. Increased risk of bleeding due to CYP2C9
inhibition
C. No significant interaction; fluconazole is safe with D. Rapid metabolism of warfarin leading to thrombosis
warfarin
Rationale: Fluconazole is a potent inhibitor of CYP2C9, the primary enzyme responsible for warfarin (S-enantiomer)
metabolism. Inhibition leads to increased warfarin levels, elevated INR, and a higher risk of bleeding. Close INR
monitoring is essential when these drugs are combined.
2. Which of the following medications requires therapeutic drug monitoring (TDM) due to a narrow therapeutic
index?
A. Lisinopril B. Metformin
C. Lithium carbonate D. Amlodipine
Rationale: Lithium has a narrow therapeutic index (0.6–1.2 mEq/L) and requires routine serum level monitoring to
avoid toxicity. Symptoms of lithium toxicity include tremor, ataxia, confusion, and seizures. Lisinopril, metformin, and
amlodipine have wide therapeutic windows and do not require TDM.
3. A patient on sertraline develops hypertensive crisis after starting a new medication. Which drug was most likely
added?
A. Amoxicillin B. Phenelzine
C. Hydrochlorothiazide D. Omeprazole
Rationale: Combining an SSRI (sertraline) with an MAOI (phenelzine) can cause serotonin syndrome and hypertensive
crisis. MAOIs inhibit monoamine oxidase, leading to excessive catecholamine accumulation. A 14-day washout is
required when switching between SSRIs and MAOIs.
1
, 4. An 82-year-old patient takes 12 different medications. She presents with confusion, dry mouth, blurred vision,
and urinary retention. What is the most likely explanation?
A. Serotonin syndrome B. Anticholinergic toxicity from polypharmacy
C. Opioid overdose D. Beta-blocker toxicity
Rationale: This patient exhibits classic anticholinergic symptoms (confusion, dry mouth, blurred vision, urinary
retention), likely caused by cumulative anticholinergic burden from multiple medications such as diphenhydramine,
oxybutynin, tricyclic antidepressants, or first-generation antihistamines. Elderly patients are especially susceptible due
to reduced cholinergic reserve.
5. A patient is converting from oral morphine 60 mg/day to an equianalgesic dose of oral oxycodone. What is the
approximate equivalent dose of oxycodone?
A. 15 mg/day B. 30 mg/day
C. 40 mg/day D. 120 mg/day
Rationale: The equianalgesic conversion ratio from oral morphine to oral oxycodone is approximately 1.5:1 to 2:1
(morphine:oxycodone). Using a conservative 1.5:1 ratio, 60 mg morphine ÷ 1.5 = 40 mg oxycodone. When converting
opioids, always round down and reassess, then titrate to effect.
6. Which antibiotic stewardship principle is most important when a patient with acute bronchitis requests
antibiotics?
A. Prescribe a broad-spectrum antibiotic to prevent B. Explain that acute bronchitis is usually viral and
complications antibiotics are not indicated
C. Prescribe antibiotics only if the patient has a fever D. Delay antibiotics for 48 hours and then prescribe if
symptoms persist
Rationale: Acute bronchitis is most commonly caused by viral infections, and antibiotics provide no benefit. Antibiotic
stewardship emphasizes avoiding unnecessary prescriptions to reduce resistance, side effects, and costs. Patient
education about expected illness duration and symptomatic management is the standard of care.
7. A pregnant patient in her first trimester requires an antihypertensive. Which medication is contraindicated due
to teratogenicity?
A. Labetalol B. Methyldopa
C. Lisinopril D. Nifedipine
Rationale: ACE inhibitors (lisinopril) are FDA Pregnancy Category D/X and are contraindicated in pregnancy due to
risk of fetal renal malformations, oligohydramnios, pulmonary hypoplasia, and fetal death. Labetalol, methyldopa, and
nifedipine are considered safer alternatives in pregnancy.
8. Vancomycin trough levels should be maintained at what range for most infections?
A. 5–10 mcg/mL B. 10–20 mcg/mL
C. 25–40 mcg/mL D. 40–60 mcg/mL
2
Ultimate Practice Exam: 2026–2027
50-Question Multiple-Choice Study Guide with Answers and Rationales
Based on Wis. Stat. § 441.16, Admin Code Chapter N 8, DEA Regulations, and 2025 Act 17
Instructions
This study guide contains 50 multiple-choice questions covering all domains tested on the Wisconsin ANP
certification exam. Each question includes the correct answer (highlighted in bold cyan) followed by a rationale
explaining the clinical and legal reasoning. Use this guide to assess your knowledge and identify areas for further
study.
Domain I: Advanced Pharmacology (Questions 1–10)
1. A 65-year-old patient taking warfarin for atrial fibrillation is prescribed fluconazole for a fungal infection. What
is the most likely clinical consequence?
A. Decreased INR due to CYP2C19 induction B. Increased risk of bleeding due to CYP2C9
inhibition
C. No significant interaction; fluconazole is safe with D. Rapid metabolism of warfarin leading to thrombosis
warfarin
Rationale: Fluconazole is a potent inhibitor of CYP2C9, the primary enzyme responsible for warfarin (S-enantiomer)
metabolism. Inhibition leads to increased warfarin levels, elevated INR, and a higher risk of bleeding. Close INR
monitoring is essential when these drugs are combined.
2. Which of the following medications requires therapeutic drug monitoring (TDM) due to a narrow therapeutic
index?
A. Lisinopril B. Metformin
C. Lithium carbonate D. Amlodipine
Rationale: Lithium has a narrow therapeutic index (0.6–1.2 mEq/L) and requires routine serum level monitoring to
avoid toxicity. Symptoms of lithium toxicity include tremor, ataxia, confusion, and seizures. Lisinopril, metformin, and
amlodipine have wide therapeutic windows and do not require TDM.
3. A patient on sertraline develops hypertensive crisis after starting a new medication. Which drug was most likely
added?
A. Amoxicillin B. Phenelzine
C. Hydrochlorothiazide D. Omeprazole
Rationale: Combining an SSRI (sertraline) with an MAOI (phenelzine) can cause serotonin syndrome and hypertensive
crisis. MAOIs inhibit monoamine oxidase, leading to excessive catecholamine accumulation. A 14-day washout is
required when switching between SSRIs and MAOIs.
1
, 4. An 82-year-old patient takes 12 different medications. She presents with confusion, dry mouth, blurred vision,
and urinary retention. What is the most likely explanation?
A. Serotonin syndrome B. Anticholinergic toxicity from polypharmacy
C. Opioid overdose D. Beta-blocker toxicity
Rationale: This patient exhibits classic anticholinergic symptoms (confusion, dry mouth, blurred vision, urinary
retention), likely caused by cumulative anticholinergic burden from multiple medications such as diphenhydramine,
oxybutynin, tricyclic antidepressants, or first-generation antihistamines. Elderly patients are especially susceptible due
to reduced cholinergic reserve.
5. A patient is converting from oral morphine 60 mg/day to an equianalgesic dose of oral oxycodone. What is the
approximate equivalent dose of oxycodone?
A. 15 mg/day B. 30 mg/day
C. 40 mg/day D. 120 mg/day
Rationale: The equianalgesic conversion ratio from oral morphine to oral oxycodone is approximately 1.5:1 to 2:1
(morphine:oxycodone). Using a conservative 1.5:1 ratio, 60 mg morphine ÷ 1.5 = 40 mg oxycodone. When converting
opioids, always round down and reassess, then titrate to effect.
6. Which antibiotic stewardship principle is most important when a patient with acute bronchitis requests
antibiotics?
A. Prescribe a broad-spectrum antibiotic to prevent B. Explain that acute bronchitis is usually viral and
complications antibiotics are not indicated
C. Prescribe antibiotics only if the patient has a fever D. Delay antibiotics for 48 hours and then prescribe if
symptoms persist
Rationale: Acute bronchitis is most commonly caused by viral infections, and antibiotics provide no benefit. Antibiotic
stewardship emphasizes avoiding unnecessary prescriptions to reduce resistance, side effects, and costs. Patient
education about expected illness duration and symptomatic management is the standard of care.
7. A pregnant patient in her first trimester requires an antihypertensive. Which medication is contraindicated due
to teratogenicity?
A. Labetalol B. Methyldopa
C. Lisinopril D. Nifedipine
Rationale: ACE inhibitors (lisinopril) are FDA Pregnancy Category D/X and are contraindicated in pregnancy due to
risk of fetal renal malformations, oligohydramnios, pulmonary hypoplasia, and fetal death. Labetalol, methyldopa, and
nifedipine are considered safer alternatives in pregnancy.
8. Vancomycin trough levels should be maintained at what range for most infections?
A. 5–10 mcg/mL B. 10–20 mcg/mL
C. 25–40 mcg/mL D. 40–60 mcg/mL
2
