Acute Care Nurse Practitioner (ACNP) Certification Exam 2026/2027 Comprehensive Knowledge Assessment and Review Guide: Advanced Test Bank, Detailed Practice Questions, Final Exam Preparation, and Complete Study Companion

1. An acute care nurse practitioner (ACNP) is working to improve the health of a population. Which intervention best reflects population-level health promotion? A. Joining a professional nursing organization and seeking leadership roles B. Maintaining current certification as an acute care nurse practitioner C. Participating in hospital grand rounds D. Reporting unusual patterns of infections to the local health department Correct Answer: D. Reporting unusual patterns of infections to the local health department Rationale: Population health focuses on surveillance, prevention, and control of disease at a community level. Reporting unusual infection patterns supports public health monitoring and outbreak prevention. 2. A patient with pneumonia is allergic to penicillin and has limited financial resources. What is the most appropriate ACNP intervention at discharge? A. Order aerosolized antibiotics B. Transfer the patient to a long-term care facility C. Consult social services for assistance D. Write a prescription for oral antibiotics only Correct Answer: C. Consult social services for assistance Rationale: The patient’s major barrier is socioeconomic. Social services can assist with medication access, insurance options, and follow-up care. 3. During preoperative assessment, an ACNP discovers a painless pulsatile abdominal mass. What is the most appropriate next step? A. Proceed with surgery as planned B. Obtain a kidney-ureter-bladder (KUB) X-ray C. Obtain an abdominal ultrasound D. Order renal arteriography Correct Answer: C. Obtain an abdominal ultrasound Rationale: A pulsatile abdominal mass suggests abdominal aortic aneurysm. Abdominal ultrasound is the first-line, noninvasive diagnostic test. 4. Which condition is characterized by Heberden and Bouchard nodes affecting distal and proximal interphalangeal joints? A. Rheumatoid arthritis B. Osteoarthritis C. Gout D. Osteoporosis Correct Answer: B. Osteoarthritis Rationale: Osteoarthritis involves degenerative joint changes with Heberden nodes at the DIP joints and Bouchard nodes at the PIP joints. 5. Which ethical principle is reflected when an ACNP prescribes a medication with known benefits but possible harmful side effects? A. Autonomy B. Beneficence C. Fidelity D. Justice Correct Answer: B. Beneficence 6. A critically ill patient develops hypernatremia with hypotension and tachycardia. What is the initial intervention? A. 0.45% sodium chloride infusion B. 5% dextrose in water (D5W) C. 0.9% sodium chloride infusion D. Fluid restriction Correct Answer: C. 0.9% sodium chloride infusion Rationale: The patient is hemodynamically unstable, so priority is volume resuscitation with isotonic saline before correcting sodium imbalance. 7. An elderly patient with UTI and allergies to penicillin and sulfonamides requires treatment. What is the best antibiotic choice? A. Cephalexin B. Ciprofloxacin C. Doxycycline D. Tetracycline Correct Answer: B. Ciprofloxacin 8. Which test best evaluates response to nutritional therapy in a patient with low albumin? A. Total serum protein B. Complete blood count C. Serum prealbumin D. Body fat percentage Correct Answer: C. Serum prealbumin 9. A cancer patient with severe bone pain from metastasis requires long-term analgesia. What is the best regimen? A. Fentanyl patch every 72 hours B. Meperidine IM every 3 hours C. Morphine via PCA with basal rate D. Oral acetaminophen scheduled Correct Answer: C. Morphine via PCA with basal rate Rationale: PCA morphine allows continuous pain control and patient autonomy, making it ideal for severe cancer pain. 10. Which symptom in a patient receiving chemotherapy requires urgent reporting? A. Alopecia B. Fatigue C. Fever D. Nausea Correct Answer: C. Fever 11. A patient with intracranial pressure (ICP) of 25 mmHg requires immediate intervention. What is appropriate? A. Mannitol administration B. Dexamethasone IV C. Ventriculostomy and CSF drainage D. Hyperventilation to PCO₂ of 30 Correct Answer: C. Ventriculostomy and CSF drainage Rationale: Surgical CSF drainage rapidly relieves dangerously elevated ICP. 12. Which medication should be used cautiously in older adults due to delirium risk? A. Fluoxetine B. Haloperidol C. Lorazepam D. Phenelzine Correct Answer: C. Lorazepam 13. What is prescribed to prevent eye complications in a ventilated, paralyzed ICU patient? A. Antibiotic drops B. Artificial tears C. Steroid ointment D. Antifungal drops Correct Answer: B. Artificial tears Rationale: Neuromuscular blockade prevents blinking, increasing the risk of corneal dryness. 14. A post–bone marrow transplant patient reports a changing skin lesion. What is the best action? A. Apply topical steroids B. Reassess in 2 weeks C. Excise immediately D. Refer to dermatology Correct Answer: D. Refer to dermatology 15. A patient with a living will refuses intubation, but physician prepares to intubate. What is first action? A. Assist with intubation B. Notify physician of patient wishes C. Contact family only D. Delay decision for court order Correct Answer: B. Notify physician of patient wishes Rationale: Patient autonomy and advance directives must be communicated immediately. 16. Best initial response to parents refusing tracheostomy for a ventilated child? A. “You are refusing life-saving care” B. “I understand your concerns” C. “We will proceed anyway” D. “You are being unreasonable” Correct Answer: B. “I understand your concerns” Rationale: Therapeutic communication begins with empathy and acknowledgment. 17. Best evidence-based practice approach before starting antihypertensive therapy? A. Consult colleague B. Review hospital formulary C. Review confidence intervals in research D. Ask attending physician Correct Answer: C. Review confidence intervals in research Rationale: Evidence-based practice relies on critical appraisal of research quality and statistical reliability. 18. Recommended PSA screening interval for a 56-year-old male? A. Monthly B. Annually C. Every 5 years D. Never Correct Answer: B. Annually 19. Which statement about quality of care is accurate? A. CQI focuses on individual errors only B. Regulatory bodies do not measure quality C. The Joint Commission mandates CQI programs D. Hospitals are not required to evaluate quality Correct Answer: C. The Joint Commission mandates CQI programs Rationale: Hospitals must implement continuous quality improvement systems. 20. Respecting a patient’s request for confidentiality demonstrates: A. Autonomy B. Beneficence C. Confidentiality D. Empathy Correct Answer: C. Confidentiality Rationale: Confidentiality protects patient information privacy. 21. Before giving nitrates for chest pain, the ACNP must assess use of: A. ACE inhibitors B. Aspirin C. Beta blockers D. Phosphodiesterase inhibitors Correct Answer: D. Phosphodiesterase inhibitors Rationale: PDE inhibitors combined with nitrates can cause life-threatening hypotension.