ENP Board Certification Exam 2026/2027 | ANCC ENP-C Aligned 175 Questions with Rationales
Emergency Nurse Practitioner (ENP) Board Certification
2026/2027 Examination | 175 Questions with Verified Answers & Rationales
Aligned with the ANCC ENP-C Examination Content Outline and Current Emergency Care Guidelines
Examination Overview. This 175-item comprehensive examination is designed to mirror the content domains, cognitive
complexity, and clinical reasoning demands of the American Nurses Credentialing Center (ANCC) Emergency Nurse
Practitioner Certification (ENP-C) examination. Items are distributed across eleven content domains reflective of the
2026-2027 ENP-C test blueprint: emergency triage and resuscitation; cardiovascular, respiratory, neurological,
gastrointestinal/genitourinary, endocrine/metabolic, infectious disease, trauma and environmental, pediatric and obstetric,
special-population and behavioral, and professional practice domains. Approximately 80% of items are scenario-based and
20% test recall of protocols, pharmacology, and guidelines. Cognitive distribution targets 25% recall, 50% application, and
25% analysis. Each item presents four options with a single best answer, followed by a rationale that explains the correct
response and addresses the principal errors represented by the distractors.
Section 1: Emergency Triage, Assessment, and Resuscitation
Triage Systems, Primary/Secondary Survey, Airway/Breathing/Circulation Management, and Resuscitation (Q1-Q20)
Q1: A 67-year-old male presents to the emergency department (ED) with sudden onset tearing chest pain
radiating to his back, blood pressure 180/110 mmHg in the right arm and 138/88 mmHg in the left arm, and a
wide mediastinum on chest X-ray. Using the Emergency Severity Index (ESI), what is the most appropriate triage
level?
A. ESI level 2 — high-risk situation requiring immediate life-saving intervention [CORRECT]
B. ESI level 3 — stable vital signs with two or more resources anticipated
C. ESI level 1 — requires immediate lifesaving intervention with airway compromise
D. ESI level 4 — one resource anticipated and stable hemodynamics
Correct Answer: A
Rationale: This presentation is classic for an acute aortic dissection and represents a high-risk situation with pulse
differential and hemodynamic instability requiring immediate physician evaluation. ESI level 2 is assigned when a patient
meets high-risk criteria even without current airway compromise; ESI level 1 is reserved for patients requiring immediate
life-saving intervention such as intubation or CPR. ESI level 3 or 4 dangerously under-triages this time-critical vascular
emergency, where each minute of delay increases mortality by approximately 1-2% in the first hours.
Emergency Nurse Practitioner Certification Preparation Page 1
,ENP Board Certification Exam 2026/2027 | ANCC ENP-C Aligned 175 Questions with Rationales
Q2: During the primary survey of a trauma patient who was ejected from a vehicle, you note stridor, tracheal
deviation, and unilaterally absent breath sounds. Which intervention should be performed first?
A. Obtain a STAT chest X-ray to confirm pneumothorax before intervention
B. Perform immediate needle decompression at the second intercostal space midclavicular line [CORRECT]
C. Establish two large-bore IVs and administer 2 liters of warmed crystalloid
D. Apply a non-rebreather mask at 15 L/min and reassess in 5 minutes
Correct Answer: B
Rationale: The clinical triad of stridor, tracheal deviation, and absent breath signals a tension pneumothorax with impending
airway compromise and obstructive shock. ATLS dictates immediate needle decompression before imaging because the delay
required to obtain a chest X-ray increases mortality in this rapidly progressive condition. IV access and fluid resuscitation do
not address the underlying mechanical problem of mediastinal shift compressing venous return. A non-rebreather mask alone
provides no therapeutic benefit for the tension physiology and wastes critical time.
Q3: A 54-year-old female arrives with presumed anaphylaxis after a bee sting. She is wheezing, has diffuse
urticaria, hoarse voice, blood pressure 78/42 mmHg, and oxygen saturation 88% on room air. What is the priority
intervention?
A. Administer 50 mg diphenhydramine IV and 125 mg methylprednisolone IV
B. Establish IV access and administer 1-2 liters of normal saline wide open
C. Administer 0.3-0.5 mg of 1:1,000 (1 mg/mL) epinephrine intramuscularly in the anterolateral thigh [CORRECT]
D. Prepare for immediate endotracheal intubation using rapid sequence induction
Correct Answer: C
Rationale: Intramuscular epinephrine into the anterolateral thigh (vastus lateralis) is the first-line, life-saving treatment for
anaphylaxis because it provides rapid alpha-1 vasoconstriction and beta-2 bronchodilation. Antihistamines and corticosteroids
are adjuncts that take effect over hours and do not address the acute vasodilatory and bronchospastic pathophysiology. IV
fluids support circulation but do not reverse the mediator cascade. Intubation may become necessary if airway edema
progresses but is not the first intervention when IM epinephrine can reverse the reaction.
Q4: A 72-year-old male is brought in unresponsive with a suspected opioid overdose. He has pinpoint pupils, a
respiratory rate of 4 breaths/min, and oxygen saturation of 82%. After opening the airway and providing
bag-valve-mask ventilation, what is the most appropriate next step?
A. Administer 0.4-0.8 mg naloxone IV/IM titrated to restore adequate respirations [CORRECT]
B. Administer 2 mg naloxone IV push to ensure complete reversal
C. Delay naloxone until endotracheal intubation is performed for airway protection
D. Continue bag-valve-mask ventilation alone and observe for spontaneous improvement
Correct Answer: A
Rationale: Naloxone should be titrated to restore adequate respiratory effort, not full consciousness, to minimize the risk of
acute withdrawal, agitation, and pulmonary edema. Initial doses of 0.4-0.8 mg IV or IM are appropriate for adults; if no
response occurs, repeated dosing may be necessary. High-dose 2 mg boluses are reserved for full arrest situations because
they precipitate severe withdrawal. Intubation is not required if ventilation can be supported and reversal achieved; prolonged
bag-valve-mask ventilation without naloxone delays definitive treatment.
Emergency Nurse Practitioner Certification Preparation Page 2
,ENP Board Certification Exam 2026/2027 | ANCC ENP-C Aligned 175 Questions with Rationales
Q5: In the secondary survey of a stable 28-year-old female involved in a motor vehicle collision, which sequence
of assessment is most appropriate per ATLS guidelines?
A. Auscultate, palpate, inspect, and then percuss each abdominal quadrant
B. Inspect, auscultate, palpate, and then perform a rectal and pelvic examination [CORRECT]
C. Perform focused assessment with sonography in trauma (FAST) before any physical examination
D. Inspect, palpate, percuss, and then auscultate to avoid altering bowel sounds
Correct Answer: B
Rationale: The ATLS secondary survey follows a head-to-toe sequence: inspect, auscultate, palpate, and then perform
adjuncts such as rectal and pelvic examinations. Auscultation typically precedes palpation in abdominal assessment so that
palpation does not stimulate artificial bowel sounds. While FAST is an important adjunct in the primary survey for unstable
patients, it does not replace the systematic physical examination. Percussion is less emphasized in the trauma secondary
survey compared with inspection, auscultation, and palpation.
Q6: A 45-year-old male presents with crushing substernal chest pain, diaphoresis, and ST-elevation in leads II, III,
and aVF. Blood pressure is 96/60 mmHg, heart rate 48 beats/min. What is the most appropriate initial
intervention for this suspected inferior STEMI with bradycardia?
A. Administer sublingual nitroglycerin 0.4 mg to reduce preload and coronary vasospasm
B. Administer atropine 1 mg IV push and prepare for transcutaneous pacing if unresponsive [CORRECT]
C. Administer metoprolol 5 mg IV push to reduce myocardial oxygen demand
D. Administer 1 liter normal saline bolus to support blood pressure
Correct Answer: B
Rationale: Inferior STEMI is commonly associated with right ventricular involvement and vagally mediated bradycardia, and
atropine 1 mg IV (repeated up to 3 mg) is the recommended initial treatment for symptomatic bradycardia in this setting.
Nitroglycerin is contraindicated in right ventricular infarction because preload dependence can precipitate profound
hypotension. IV beta-blockers are contraindicated in hypotensive patients with bradycardia. Fluid bolus may be considered if
right ventricular infarction is confirmed, but the priority intervention for symptomatic bradycardia is atropine.
Q7: Which finding best differentiates a patient who should be triaged as ESI level 1 from one triaged as ESI level
2?
A. The level 1 patient requires immediate intubation, defibrillation, or another life-saving intervention [CORRECT]
B. The level 1 patient has abnormal vital signs but is still conscious and breathing
C. The level 2 patient has unstable vital signs and should wait no longer than 10 minutes for a physician
D. The level 2 patient requires three or more resources and has a normal pulse oximetry
Correct Answer: A
Rationale: ESI level 1 patients require immediate life-saving interventions such as intubation, defibrillation, emergent
cardioversion, or crystalloid bolus for severe shock. ESI level 2 patients are high-risk situations or those with severe
pain/distress, new-onset altered mental status, or potentially unstable vital signs requiring physician evaluation within 10
minutes but not necessarily a life-saving procedure. The distinction is based on the immediacy of the intervention required,
not the number of resources anticipated.
Emergency Nurse Practitioner Certification Preparation Page 3
, ENP Board Certification Exam 2026/2027 | ANCC ENP-C Aligned 175 Questions with Rationales
Q8: A 3-year-old child is brought to the ED with lethargy, capillary refill of 4 seconds, and tachycardia following
two days of vomiting and diarrhea. Using the Pediatric Assessment Triangle, which combination best describes
this child's presentation?
A. Appearance: abnormal; Breathing: normal; Circulation: abnormal [CORRECT]
B. Appearance: abnormal; Breathing: abnormal; Circulation: normal
C. Appearance: normal; Breathing: abnormal; Circulation: abnormal
D. Appearance: normal; Breathing: normal; Circulation: normal
Correct Answer: A
Rationale: The Pediatric Assessment Triangle evaluates appearance, breathing, and circulation. Lethargy indicates abnormal
appearance, and delayed capillary refill with tachycardia following fluid losses indicates abnormal circulation. Without
reports of respiratory distress or abnormal work of breathing, breathing is presumed normal. This combination identifies a
child in compensated shock who requires immediate fluid resuscitation rather than a primary respiratory problem.
Q9: During resuscitation of a patient in cardiac arrest, the team leader notes the end-tidal CO2 (ETCO2) abruptly
rises from 18 mmHg to 48 mmHg after 12 minutes of high-quality CPR. What is the most accurate interpretation
of this finding?
A. The patient has developed metabolic acidosis from prolonged ischemia
B. Return of spontaneous circulation (ROSC) is likely occurring and pulses should be assessed [CORRECT]
C. The endotracheal tube has migrated and is providing excessive ventilation
D. Epinephrine has been administered correctly and is producing vasoconstriction
Correct Answer: B
Rationale: An abrupt rise in ETCO2 during CPR is a sensitive indicator of return of spontaneous circulation because restored
pulmonary blood flow delivers more CO2 to the lungs for exhalation. A sudden increase from a baseline of 18-20 mmHg to
greater than 40 mmHg should prompt immediate pulse check. Metabolic acidosis would not produce a sudden ETCO2 rise.
Tube migration and excessive ventilation typically lower ETCO2. Epinephrine administration may produce vasoconstriction
but does not cause an abrupt ETCO2 rise.
Q10: A 60-year-old male with massive hemoptysis arrives with tachypnea and an oxygen saturation of 86%. To
protect the uninvolved lung from blood aspiration, what positioning and intervention is most appropriate?
A. Place the patient supine with head of bed flat to maximize cerebral perfusion
B. Position the patient with the bleeding side down and prepare for definitive airway management [CORRECT]
C. Sit the patient upright and lean forward to facilitate expectoration of blood
D. Place the patient in the Trendelenburg position to drain blood from the airway
Correct Answer: B
Rationale: Positioning the patient with the bleeding side down (dependent lung) uses gravity to prevent spillage of blood into
the unaffected lung while preparing for definitive airway management with a large single-lumen tube or double-lumen tube.
Supine positioning allows blood to flood both lungs. Upright positioning does not protect the dependent lung. Trendelenburg
position worsens pulmonary blood pooling and compromises ventilation.
Emergency Nurse Practitioner Certification Preparation Page 4
Emergency Nurse Practitioner (ENP) Board Certification
2026/2027 Examination | 175 Questions with Verified Answers & Rationales
Aligned with the ANCC ENP-C Examination Content Outline and Current Emergency Care Guidelines
Examination Overview. This 175-item comprehensive examination is designed to mirror the content domains, cognitive
complexity, and clinical reasoning demands of the American Nurses Credentialing Center (ANCC) Emergency Nurse
Practitioner Certification (ENP-C) examination. Items are distributed across eleven content domains reflective of the
2026-2027 ENP-C test blueprint: emergency triage and resuscitation; cardiovascular, respiratory, neurological,
gastrointestinal/genitourinary, endocrine/metabolic, infectious disease, trauma and environmental, pediatric and obstetric,
special-population and behavioral, and professional practice domains. Approximately 80% of items are scenario-based and
20% test recall of protocols, pharmacology, and guidelines. Cognitive distribution targets 25% recall, 50% application, and
25% analysis. Each item presents four options with a single best answer, followed by a rationale that explains the correct
response and addresses the principal errors represented by the distractors.
Section 1: Emergency Triage, Assessment, and Resuscitation
Triage Systems, Primary/Secondary Survey, Airway/Breathing/Circulation Management, and Resuscitation (Q1-Q20)
Q1: A 67-year-old male presents to the emergency department (ED) with sudden onset tearing chest pain
radiating to his back, blood pressure 180/110 mmHg in the right arm and 138/88 mmHg in the left arm, and a
wide mediastinum on chest X-ray. Using the Emergency Severity Index (ESI), what is the most appropriate triage
level?
A. ESI level 2 — high-risk situation requiring immediate life-saving intervention [CORRECT]
B. ESI level 3 — stable vital signs with two or more resources anticipated
C. ESI level 1 — requires immediate lifesaving intervention with airway compromise
D. ESI level 4 — one resource anticipated and stable hemodynamics
Correct Answer: A
Rationale: This presentation is classic for an acute aortic dissection and represents a high-risk situation with pulse
differential and hemodynamic instability requiring immediate physician evaluation. ESI level 2 is assigned when a patient
meets high-risk criteria even without current airway compromise; ESI level 1 is reserved for patients requiring immediate
life-saving intervention such as intubation or CPR. ESI level 3 or 4 dangerously under-triages this time-critical vascular
emergency, where each minute of delay increases mortality by approximately 1-2% in the first hours.
Emergency Nurse Practitioner Certification Preparation Page 1
,ENP Board Certification Exam 2026/2027 | ANCC ENP-C Aligned 175 Questions with Rationales
Q2: During the primary survey of a trauma patient who was ejected from a vehicle, you note stridor, tracheal
deviation, and unilaterally absent breath sounds. Which intervention should be performed first?
A. Obtain a STAT chest X-ray to confirm pneumothorax before intervention
B. Perform immediate needle decompression at the second intercostal space midclavicular line [CORRECT]
C. Establish two large-bore IVs and administer 2 liters of warmed crystalloid
D. Apply a non-rebreather mask at 15 L/min and reassess in 5 minutes
Correct Answer: B
Rationale: The clinical triad of stridor, tracheal deviation, and absent breath signals a tension pneumothorax with impending
airway compromise and obstructive shock. ATLS dictates immediate needle decompression before imaging because the delay
required to obtain a chest X-ray increases mortality in this rapidly progressive condition. IV access and fluid resuscitation do
not address the underlying mechanical problem of mediastinal shift compressing venous return. A non-rebreather mask alone
provides no therapeutic benefit for the tension physiology and wastes critical time.
Q3: A 54-year-old female arrives with presumed anaphylaxis after a bee sting. She is wheezing, has diffuse
urticaria, hoarse voice, blood pressure 78/42 mmHg, and oxygen saturation 88% on room air. What is the priority
intervention?
A. Administer 50 mg diphenhydramine IV and 125 mg methylprednisolone IV
B. Establish IV access and administer 1-2 liters of normal saline wide open
C. Administer 0.3-0.5 mg of 1:1,000 (1 mg/mL) epinephrine intramuscularly in the anterolateral thigh [CORRECT]
D. Prepare for immediate endotracheal intubation using rapid sequence induction
Correct Answer: C
Rationale: Intramuscular epinephrine into the anterolateral thigh (vastus lateralis) is the first-line, life-saving treatment for
anaphylaxis because it provides rapid alpha-1 vasoconstriction and beta-2 bronchodilation. Antihistamines and corticosteroids
are adjuncts that take effect over hours and do not address the acute vasodilatory and bronchospastic pathophysiology. IV
fluids support circulation but do not reverse the mediator cascade. Intubation may become necessary if airway edema
progresses but is not the first intervention when IM epinephrine can reverse the reaction.
Q4: A 72-year-old male is brought in unresponsive with a suspected opioid overdose. He has pinpoint pupils, a
respiratory rate of 4 breaths/min, and oxygen saturation of 82%. After opening the airway and providing
bag-valve-mask ventilation, what is the most appropriate next step?
A. Administer 0.4-0.8 mg naloxone IV/IM titrated to restore adequate respirations [CORRECT]
B. Administer 2 mg naloxone IV push to ensure complete reversal
C. Delay naloxone until endotracheal intubation is performed for airway protection
D. Continue bag-valve-mask ventilation alone and observe for spontaneous improvement
Correct Answer: A
Rationale: Naloxone should be titrated to restore adequate respiratory effort, not full consciousness, to minimize the risk of
acute withdrawal, agitation, and pulmonary edema. Initial doses of 0.4-0.8 mg IV or IM are appropriate for adults; if no
response occurs, repeated dosing may be necessary. High-dose 2 mg boluses are reserved for full arrest situations because
they precipitate severe withdrawal. Intubation is not required if ventilation can be supported and reversal achieved; prolonged
bag-valve-mask ventilation without naloxone delays definitive treatment.
Emergency Nurse Practitioner Certification Preparation Page 2
,ENP Board Certification Exam 2026/2027 | ANCC ENP-C Aligned 175 Questions with Rationales
Q5: In the secondary survey of a stable 28-year-old female involved in a motor vehicle collision, which sequence
of assessment is most appropriate per ATLS guidelines?
A. Auscultate, palpate, inspect, and then percuss each abdominal quadrant
B. Inspect, auscultate, palpate, and then perform a rectal and pelvic examination [CORRECT]
C. Perform focused assessment with sonography in trauma (FAST) before any physical examination
D. Inspect, palpate, percuss, and then auscultate to avoid altering bowel sounds
Correct Answer: B
Rationale: The ATLS secondary survey follows a head-to-toe sequence: inspect, auscultate, palpate, and then perform
adjuncts such as rectal and pelvic examinations. Auscultation typically precedes palpation in abdominal assessment so that
palpation does not stimulate artificial bowel sounds. While FAST is an important adjunct in the primary survey for unstable
patients, it does not replace the systematic physical examination. Percussion is less emphasized in the trauma secondary
survey compared with inspection, auscultation, and palpation.
Q6: A 45-year-old male presents with crushing substernal chest pain, diaphoresis, and ST-elevation in leads II, III,
and aVF. Blood pressure is 96/60 mmHg, heart rate 48 beats/min. What is the most appropriate initial
intervention for this suspected inferior STEMI with bradycardia?
A. Administer sublingual nitroglycerin 0.4 mg to reduce preload and coronary vasospasm
B. Administer atropine 1 mg IV push and prepare for transcutaneous pacing if unresponsive [CORRECT]
C. Administer metoprolol 5 mg IV push to reduce myocardial oxygen demand
D. Administer 1 liter normal saline bolus to support blood pressure
Correct Answer: B
Rationale: Inferior STEMI is commonly associated with right ventricular involvement and vagally mediated bradycardia, and
atropine 1 mg IV (repeated up to 3 mg) is the recommended initial treatment for symptomatic bradycardia in this setting.
Nitroglycerin is contraindicated in right ventricular infarction because preload dependence can precipitate profound
hypotension. IV beta-blockers are contraindicated in hypotensive patients with bradycardia. Fluid bolus may be considered if
right ventricular infarction is confirmed, but the priority intervention for symptomatic bradycardia is atropine.
Q7: Which finding best differentiates a patient who should be triaged as ESI level 1 from one triaged as ESI level
2?
A. The level 1 patient requires immediate intubation, defibrillation, or another life-saving intervention [CORRECT]
B. The level 1 patient has abnormal vital signs but is still conscious and breathing
C. The level 2 patient has unstable vital signs and should wait no longer than 10 minutes for a physician
D. The level 2 patient requires three or more resources and has a normal pulse oximetry
Correct Answer: A
Rationale: ESI level 1 patients require immediate life-saving interventions such as intubation, defibrillation, emergent
cardioversion, or crystalloid bolus for severe shock. ESI level 2 patients are high-risk situations or those with severe
pain/distress, new-onset altered mental status, or potentially unstable vital signs requiring physician evaluation within 10
minutes but not necessarily a life-saving procedure. The distinction is based on the immediacy of the intervention required,
not the number of resources anticipated.
Emergency Nurse Practitioner Certification Preparation Page 3
, ENP Board Certification Exam 2026/2027 | ANCC ENP-C Aligned 175 Questions with Rationales
Q8: A 3-year-old child is brought to the ED with lethargy, capillary refill of 4 seconds, and tachycardia following
two days of vomiting and diarrhea. Using the Pediatric Assessment Triangle, which combination best describes
this child's presentation?
A. Appearance: abnormal; Breathing: normal; Circulation: abnormal [CORRECT]
B. Appearance: abnormal; Breathing: abnormal; Circulation: normal
C. Appearance: normal; Breathing: abnormal; Circulation: abnormal
D. Appearance: normal; Breathing: normal; Circulation: normal
Correct Answer: A
Rationale: The Pediatric Assessment Triangle evaluates appearance, breathing, and circulation. Lethargy indicates abnormal
appearance, and delayed capillary refill with tachycardia following fluid losses indicates abnormal circulation. Without
reports of respiratory distress or abnormal work of breathing, breathing is presumed normal. This combination identifies a
child in compensated shock who requires immediate fluid resuscitation rather than a primary respiratory problem.
Q9: During resuscitation of a patient in cardiac arrest, the team leader notes the end-tidal CO2 (ETCO2) abruptly
rises from 18 mmHg to 48 mmHg after 12 minutes of high-quality CPR. What is the most accurate interpretation
of this finding?
A. The patient has developed metabolic acidosis from prolonged ischemia
B. Return of spontaneous circulation (ROSC) is likely occurring and pulses should be assessed [CORRECT]
C. The endotracheal tube has migrated and is providing excessive ventilation
D. Epinephrine has been administered correctly and is producing vasoconstriction
Correct Answer: B
Rationale: An abrupt rise in ETCO2 during CPR is a sensitive indicator of return of spontaneous circulation because restored
pulmonary blood flow delivers more CO2 to the lungs for exhalation. A sudden increase from a baseline of 18-20 mmHg to
greater than 40 mmHg should prompt immediate pulse check. Metabolic acidosis would not produce a sudden ETCO2 rise.
Tube migration and excessive ventilation typically lower ETCO2. Epinephrine administration may produce vasoconstriction
but does not cause an abrupt ETCO2 rise.
Q10: A 60-year-old male with massive hemoptysis arrives with tachypnea and an oxygen saturation of 86%. To
protect the uninvolved lung from blood aspiration, what positioning and intervention is most appropriate?
A. Place the patient supine with head of bed flat to maximize cerebral perfusion
B. Position the patient with the bleeding side down and prepare for definitive airway management [CORRECT]
C. Sit the patient upright and lean forward to facilitate expectoration of blood
D. Place the patient in the Trendelenburg position to drain blood from the airway
Correct Answer: B
Rationale: Positioning the patient with the bleeding side down (dependent lung) uses gravity to prevent spillage of blood into
the unaffected lung while preparing for definitive airway management with a large single-lumen tube or double-lumen tube.
Supine positioning allows blood to flood both lungs. Upright positioning does not protect the dependent lung. Trendelenburg
position worsens pulmonary blood pooling and compromises ventilation.
Emergency Nurse Practitioner Certification Preparation Page 4
