AGACNP: Adult-Gerontology Acute Care Nurse
Practitioner Prep with Detailed Rationales
Course Code: AGACNP-Acute
Course Name: Adult-Gerontology Acute Care Nurse Practitioner Board Review
Topic: Advanced Acute Care Diagnostic Reasoning and Management
Academic Year: 2026/2027
1. A 72-year-old male presents to the emergency department with acute onset
of severe substernal chest pain radiating to his left jaw. The 12-lead
electrocardiogram (ECG) reveals ST-segment elevation of 2.5 mm in leads
V1 through V4. The patient's blood pressure is 88/54 mmHg, heart rate is
112 beats per minute, and oxygen saturation is 89% on room air. After
initiating oxygen and ordering emergency cardiac catheterization, which
high-yield pharmacological intervention must be administered immediately
to reduce mortality?
A. Aspirin 324 mg chewed
B. Intravenous metoprolol 5 mg push
C. Sublingual nitroglycerin 0.4 mg tablet
D. Intravenous bolus of diltiazem 20 mg
CORRECT ANSWER: A. Aspirin 324 mg chewed
RATIONALE: In an acute anterior wall ST-segment elevation myocardial
infarction (STEMI) presenting with cardiogenic shock, aspirin 324 mg chewed
is the top priority medication that independently reduces mortality by inhibiting
further platelet aggregation.
• Distractor B is incorrect because beta-blockers are contraindicated in acute
cardiogenic shock or profound hypotension, as they reduce cardiac
contractility and heart rate.
• Distractor C is incorrect because sublingual nitroglycerin is contraindicated
in patients with a systolic blood pressure below 90 mmHg, as venodilation
will further worsen hypotension.
, • Distractor D is incorrect because diltiazem is a calcium channel blocker that
decreases myocardial contractility and is not indicated for acute STEMI
management.
2. A 68-year-old female patient is admitted to the intensive care unit with a
severe exacerbation of chronic obstructive pulmonary disease (COPD).
Her arterial blood gas (ABG) on a 2L nasal cannula reveals a pH of 7.22,
PaCO2 of 75 mmHg, and PaO2 of 55 mmHg. She is awake, cooperative, and
able to protect her airway. Which initial respiratory modality is the most
appropriate next step?
A. Noninvasive positive pressure ventilation (BiPAP)
B. High-flow nasal cannula at 60L/min and 40% oxygen
C. Immediate endotracheal intubation and mechanical ventilation
D. Increasing the low-flow nasal cannula oxygen to 6L/min
CORRECT ANSWER: A. Noninvasive positive pressure ventilation (BiPAP)
RATIONALE: The patient is experiencing severe respiratory acidosis and
hypercapnic respiratory failure secondary to a COPD exacerbation. Noninvasive
positive pressure ventilation (BiPAP) is the gold-standard initial treatment
because it increases alveolar ventilation, helps blow off carbon dioxide, decreases
the work of breathing, and reduces the need for invasive intubation.
• Distractor B is incorrect because high-flow nasal cannula provides
oxygenation but does not offer the necessary inspiratory pressure support
required to effectively clear carbon dioxide.
• Distractor C is incorrect because invasive mechanical ventilation should be
reserved for patients who fail noninvasive methods, cannot protect their
airway, or are hemodynamically unstable.
• Distractor D is incorrect because increasing low-flow oxygen without
ventilation support can worsen hypercapnia by blunting the hypoxic
respiratory drive in chronic retainers.
3. A 61-year-old patient with an absolute neutrophil count (ANC) of 350
cells/mcL following chemotherapy presents with a temperature of 38.6°C
, (101.5°F) and a blood pressure of 102/60 mmHg. Which diagnostic and
therapeutic workflow represents the standard of care for febrile
neutropenia?
A. Draw two sets of blood cultures immediately and administer empiric
broad-spectrum antibiotics within 1 hour
B. Wait for urinalysis and chest X-ray results before initiating any antibiotic
therapy
C. Administer oral acetaminophen and recheck the temperature in 4 hours before
drawing cultures
D. Discharge the patient home with a prescription for oral amoxicillin-clavulanate
CORRECT ANSWER: A. Draw two sets of blood cultures immediately and
administer empiric broad-spectrum antibiotics within 1 hour
RATIONALE: Febrile neutropenia is an oncological emergency. The standard
of care requires drawing blood cultures immediately, followed by the
administration of empiric broad-spectrum anti-pseudomonal antibiotics (such
as cefepime or piperacillin-tazobactam) within 1 hour of presentation to prevent
rapid progression to septic shock.
• Distractor B is incorrect because delaying antibiotic therapy to wait for
imaging or laboratory results increases the risk of mortality from
overwhelming sepsis.
• Distractor C is incorrect because antipyretics mask fevers and do not treat
the underlying bacterial infection, which requires immediate empirical
treatment.
• Distractor D is incorrect because an ANC under 500 cells/mcL combined
with a fever mandates inpatient admission and intravenous antibiotic therapy
rather than home management.
4. True or False: In a patient presenting with an acute ischemic stroke who is a
candidate for intravenous alteplase (tPA), the blood pressure must be safely
lowered below 185/110 mmHg prior to administering the thrombolytic
agent.
, A. True
B. False
CORRECT ANSWER: A. True
RATIONALE: For an acute ischemic stroke, a blood pressure below 185/110
mmHg is an absolute safety threshold before initiating alteplase (tPA) therapy.
Lowering the blood pressure below this limit minimizes the risk of hemorrhagic
transformation within the ischemic brain tissue.
• Distractor B is incorrect because allowing the blood pressure to remain
above 185/110 mmHg during thrombolytic administration directly violates
guideline safety parameters and increases internal bleeding risks.
5. A 45-year-old male with a history of severe chronic alcoholism is admitted
to the progressive care unit. On hospital day two, he develops gross hand
tremors, extreme agitation, visual hallucinations, a heart rate of 128 beats
per minute, and a blood pressure of 168/98 mmHg. Which pharmacological
agent is the first-line drug of choice to manage this severe alcohol
withdrawal syndrome?
A. Lorazepam titrated via a CIWA-Ar protocol
B. Haloperidol 5 mg intravenous push every 2 hours
C. Clonidine 0.1 mg oral patch applied immediately
D. Phenytoin 100 mg orally three times daily
CORRECT ANSWER: A. Lorazepam titrated via a CIWA-Ar protocol
RATIONALE: Alcohol withdrawal syndrome causes central nervous system
hyperexcitability due to down-regulated GABA receptors. Lorazepam titrated via
a CIWA-Ar protocol safely cross-activates GABA pathways, which stabilizes
autonomic hyperactivity, reduces agitation, and prevents withdrawal seizures or
delirium tremens.
• Distractor B is incorrect because antipsychotics like haloperidol lower the
seizure threshold, increasing the risk of generalized withdrawal seizures.
• Distractor C is incorrect because clonidine only addresses peripheral
adrenergic symptoms like hypertension and tachycardia without treating the
underlying neurological risk.
Practitioner Prep with Detailed Rationales
Course Code: AGACNP-Acute
Course Name: Adult-Gerontology Acute Care Nurse Practitioner Board Review
Topic: Advanced Acute Care Diagnostic Reasoning and Management
Academic Year: 2026/2027
1. A 72-year-old male presents to the emergency department with acute onset
of severe substernal chest pain radiating to his left jaw. The 12-lead
electrocardiogram (ECG) reveals ST-segment elevation of 2.5 mm in leads
V1 through V4. The patient's blood pressure is 88/54 mmHg, heart rate is
112 beats per minute, and oxygen saturation is 89% on room air. After
initiating oxygen and ordering emergency cardiac catheterization, which
high-yield pharmacological intervention must be administered immediately
to reduce mortality?
A. Aspirin 324 mg chewed
B. Intravenous metoprolol 5 mg push
C. Sublingual nitroglycerin 0.4 mg tablet
D. Intravenous bolus of diltiazem 20 mg
CORRECT ANSWER: A. Aspirin 324 mg chewed
RATIONALE: In an acute anterior wall ST-segment elevation myocardial
infarction (STEMI) presenting with cardiogenic shock, aspirin 324 mg chewed
is the top priority medication that independently reduces mortality by inhibiting
further platelet aggregation.
• Distractor B is incorrect because beta-blockers are contraindicated in acute
cardiogenic shock or profound hypotension, as they reduce cardiac
contractility and heart rate.
• Distractor C is incorrect because sublingual nitroglycerin is contraindicated
in patients with a systolic blood pressure below 90 mmHg, as venodilation
will further worsen hypotension.
, • Distractor D is incorrect because diltiazem is a calcium channel blocker that
decreases myocardial contractility and is not indicated for acute STEMI
management.
2. A 68-year-old female patient is admitted to the intensive care unit with a
severe exacerbation of chronic obstructive pulmonary disease (COPD).
Her arterial blood gas (ABG) on a 2L nasal cannula reveals a pH of 7.22,
PaCO2 of 75 mmHg, and PaO2 of 55 mmHg. She is awake, cooperative, and
able to protect her airway. Which initial respiratory modality is the most
appropriate next step?
A. Noninvasive positive pressure ventilation (BiPAP)
B. High-flow nasal cannula at 60L/min and 40% oxygen
C. Immediate endotracheal intubation and mechanical ventilation
D. Increasing the low-flow nasal cannula oxygen to 6L/min
CORRECT ANSWER: A. Noninvasive positive pressure ventilation (BiPAP)
RATIONALE: The patient is experiencing severe respiratory acidosis and
hypercapnic respiratory failure secondary to a COPD exacerbation. Noninvasive
positive pressure ventilation (BiPAP) is the gold-standard initial treatment
because it increases alveolar ventilation, helps blow off carbon dioxide, decreases
the work of breathing, and reduces the need for invasive intubation.
• Distractor B is incorrect because high-flow nasal cannula provides
oxygenation but does not offer the necessary inspiratory pressure support
required to effectively clear carbon dioxide.
• Distractor C is incorrect because invasive mechanical ventilation should be
reserved for patients who fail noninvasive methods, cannot protect their
airway, or are hemodynamically unstable.
• Distractor D is incorrect because increasing low-flow oxygen without
ventilation support can worsen hypercapnia by blunting the hypoxic
respiratory drive in chronic retainers.
3. A 61-year-old patient with an absolute neutrophil count (ANC) of 350
cells/mcL following chemotherapy presents with a temperature of 38.6°C
, (101.5°F) and a blood pressure of 102/60 mmHg. Which diagnostic and
therapeutic workflow represents the standard of care for febrile
neutropenia?
A. Draw two sets of blood cultures immediately and administer empiric
broad-spectrum antibiotics within 1 hour
B. Wait for urinalysis and chest X-ray results before initiating any antibiotic
therapy
C. Administer oral acetaminophen and recheck the temperature in 4 hours before
drawing cultures
D. Discharge the patient home with a prescription for oral amoxicillin-clavulanate
CORRECT ANSWER: A. Draw two sets of blood cultures immediately and
administer empiric broad-spectrum antibiotics within 1 hour
RATIONALE: Febrile neutropenia is an oncological emergency. The standard
of care requires drawing blood cultures immediately, followed by the
administration of empiric broad-spectrum anti-pseudomonal antibiotics (such
as cefepime or piperacillin-tazobactam) within 1 hour of presentation to prevent
rapid progression to septic shock.
• Distractor B is incorrect because delaying antibiotic therapy to wait for
imaging or laboratory results increases the risk of mortality from
overwhelming sepsis.
• Distractor C is incorrect because antipyretics mask fevers and do not treat
the underlying bacterial infection, which requires immediate empirical
treatment.
• Distractor D is incorrect because an ANC under 500 cells/mcL combined
with a fever mandates inpatient admission and intravenous antibiotic therapy
rather than home management.
4. True or False: In a patient presenting with an acute ischemic stroke who is a
candidate for intravenous alteplase (tPA), the blood pressure must be safely
lowered below 185/110 mmHg prior to administering the thrombolytic
agent.
, A. True
B. False
CORRECT ANSWER: A. True
RATIONALE: For an acute ischemic stroke, a blood pressure below 185/110
mmHg is an absolute safety threshold before initiating alteplase (tPA) therapy.
Lowering the blood pressure below this limit minimizes the risk of hemorrhagic
transformation within the ischemic brain tissue.
• Distractor B is incorrect because allowing the blood pressure to remain
above 185/110 mmHg during thrombolytic administration directly violates
guideline safety parameters and increases internal bleeding risks.
5. A 45-year-old male with a history of severe chronic alcoholism is admitted
to the progressive care unit. On hospital day two, he develops gross hand
tremors, extreme agitation, visual hallucinations, a heart rate of 128 beats
per minute, and a blood pressure of 168/98 mmHg. Which pharmacological
agent is the first-line drug of choice to manage this severe alcohol
withdrawal syndrome?
A. Lorazepam titrated via a CIWA-Ar protocol
B. Haloperidol 5 mg intravenous push every 2 hours
C. Clonidine 0.1 mg oral patch applied immediately
D. Phenytoin 100 mg orally three times daily
CORRECT ANSWER: A. Lorazepam titrated via a CIWA-Ar protocol
RATIONALE: Alcohol withdrawal syndrome causes central nervous system
hyperexcitability due to down-regulated GABA receptors. Lorazepam titrated via
a CIWA-Ar protocol safely cross-activates GABA pathways, which stabilizes
autonomic hyperactivity, reduces agitation, and prevents withdrawal seizures or
delirium tremens.
• Distractor B is incorrect because antipsychotics like haloperidol lower the
seizure threshold, increasing the risk of generalized withdrawal seizures.
• Distractor C is incorrect because clonidine only addresses peripheral
adrenergic symptoms like hypertension and tachycardia without treating the
underlying neurological risk.
