AGACNP ACTUAL EXAM 2026/2027 | ANCC & AACN-Aligned
| Verified Rationales | Acute Care | Pass Guaranteed - A+
Graded
Domain 1: Assessment & Diagnosis (45 Questions)
Q1: A 68-year-old male presents to the ED with crushing substernal chest pain radiating
to the left arm, diaphoresis, and nausea. Vital signs: BP 88/52 mmHg, HR 110 bpm, RR
24/min, SpO2 91% on room air. EKG shows ST-segment elevation in leads II, III, and aVF
with reciprocal changes in I and aVL. Which finding on physical examination is most
consistent with this presentation?
A. Holosystolic murmur at the apex radiating to the axilla
B. Jugular venous distension with clear lung fields and hypotension [CORRECT]
C. Bilateral crackles to the apices with an S3 gallop
D. Pulsus paradoxus >20 mmHg with muffled heart sounds
Correct Answer: B
Rationale: The presentation indicates inferior wall STEMI (ST elevation II, III, aVF) with
right ventricular (RV) involvement (hypotension, JVD, clear lungs = Beck's triad
,equivalent for RV failure). RV infarction occurs in 30-50% of inferior MIs due to RCA
occlusion. The combination of hypotension with JVD and clear lungs distinguishes RV
infarction from left-sided failure (which would show pulmonary congestion). This
requires specific management: avoid nitrates and diuretics (preload dependent), give
fluids to maintain RV filling.
Why others are incorrect:
● A: Papillary muscle rupture causing acute mitral regurgitation presents with new
holosystolic murmur and pulmonary edema, not clear lungs with JVD.
● C: Bilateral crackles with S3 indicate left ventricular failure/pulmonary edema, not
RV infarction.
● D: Cardiac tamponade presents with Beck's triad (hypotension, JVD, muffled
sounds) plus pulsus paradoxus; this is MI with RV involvement, not tamponade.
Clinical Alert: Inferior STEMI with hemodynamic instability always assess for RV infarct
(right-sided leads V4R). Management differs significantly from LV infarction.
Q2: A 72-year-old female with COPD presents with worsening dyspnea over 3 days. ABG
on room air: pH 7.25, PaCO2 68 mmHg, PaO2 52 mmHg, HCO3- 30 mEq/L. Which
acid-base disorder is present?
A. Acute respiratory acidosis
B. Chronic respiratory acidosis with metabolic compensation [CORRECT]
C. Acute-on-chronic respiratory acidosis
,D. Metabolic alkalosis with respiratory compensation
Correct Answer: B
Rationale: The ABG demonstrates chronic respiratory acidosis with appropriate
metabolic compensation. Key findings: pH 7.25 (acidemia), elevated PaCO2 (68 mmHg
= respiratory acidosis), elevated HCO3- (30 mEq/L = metabolic compensation). In acute
respiratory acidosis, HCO3- increases 1 mEq/L for every 10 mmHg PaCO2 increase
(expected ~26). Here, HCO3- is 30, indicating chronic compensation (kidneys have had
time to retain bicarbonate). The 3-day history confirms chronicity.
Why others are incorrect:
● A: Acute respiratory acidosis would show minimal HCO3- elevation (<1 mEq/L
per 10 mmHg PaCO2 rise).
● C: Acute-on-chronic would show pH closer to normal with higher PaCO2 than
baseline; this represents compensated chronic state.
● D: Primary metabolic alkalosis would have elevated pH with increased HCO3-;
here pH is low.
Clinical Alert: In COPD exacerbations, avoid over-correction of chronic hypercapnia
(permissive hypercapnia strategy) to prevent alkalemia and bicarbonate wasting.
Q3: A 58-year-old male presents with sudden onset severe headache, "worst of my life,"
with neck stiffness and photophobia. CT head is negative for hemorrhage. Which is the
next priority diagnostic study?
, A. MRI brain with and without contrast
B. Lumbar puncture for CSF analysis [CORRECT]
C. CTA head and neck
D. EEG to rule out seizure activity
Correct Answer: B
Rationale: This presentation is classic for subarachnoid hemorrhage (SAH) or
meningitis. CT scan has 90-95% sensitivity for SAH within 6 hours, but sensitivity
decreases after 12 hours to ~80% at 24 hours. With negative CT >6 hours from
symptom onset, lumbar puncture is mandatory to detect xanthochromia (RBC
breakdown products) or elevated opening pressure. LP should be performed 12 hours
after headache onset for xanthochromia to develop.
Why others are incorrect:
● A: MRI is sensitive for SAH but less available, more expensive, and not the
standard next step; LP is gold standard when CT negative.
● C: CTA evaluates for aneurysm but only after confirming SAH; also requires
contrast with potential nephrotoxicity.
● D: Seizure is unlikely with this presentation; no post-ictal confusion or witnessed
seizure activity described.
Clinical Alert: Xanthochromia (yellow CSF supernatant) distinguishes true SAH from
traumatic tap. Centrifuge CSF and examine supernatant. Spectrophotometry is most
sensitive.
| Verified Rationales | Acute Care | Pass Guaranteed - A+
Graded
Domain 1: Assessment & Diagnosis (45 Questions)
Q1: A 68-year-old male presents to the ED with crushing substernal chest pain radiating
to the left arm, diaphoresis, and nausea. Vital signs: BP 88/52 mmHg, HR 110 bpm, RR
24/min, SpO2 91% on room air. EKG shows ST-segment elevation in leads II, III, and aVF
with reciprocal changes in I and aVL. Which finding on physical examination is most
consistent with this presentation?
A. Holosystolic murmur at the apex radiating to the axilla
B. Jugular venous distension with clear lung fields and hypotension [CORRECT]
C. Bilateral crackles to the apices with an S3 gallop
D. Pulsus paradoxus >20 mmHg with muffled heart sounds
Correct Answer: B
Rationale: The presentation indicates inferior wall STEMI (ST elevation II, III, aVF) with
right ventricular (RV) involvement (hypotension, JVD, clear lungs = Beck's triad
,equivalent for RV failure). RV infarction occurs in 30-50% of inferior MIs due to RCA
occlusion. The combination of hypotension with JVD and clear lungs distinguishes RV
infarction from left-sided failure (which would show pulmonary congestion). This
requires specific management: avoid nitrates and diuretics (preload dependent), give
fluids to maintain RV filling.
Why others are incorrect:
● A: Papillary muscle rupture causing acute mitral regurgitation presents with new
holosystolic murmur and pulmonary edema, not clear lungs with JVD.
● C: Bilateral crackles with S3 indicate left ventricular failure/pulmonary edema, not
RV infarction.
● D: Cardiac tamponade presents with Beck's triad (hypotension, JVD, muffled
sounds) plus pulsus paradoxus; this is MI with RV involvement, not tamponade.
Clinical Alert: Inferior STEMI with hemodynamic instability always assess for RV infarct
(right-sided leads V4R). Management differs significantly from LV infarction.
Q2: A 72-year-old female with COPD presents with worsening dyspnea over 3 days. ABG
on room air: pH 7.25, PaCO2 68 mmHg, PaO2 52 mmHg, HCO3- 30 mEq/L. Which
acid-base disorder is present?
A. Acute respiratory acidosis
B. Chronic respiratory acidosis with metabolic compensation [CORRECT]
C. Acute-on-chronic respiratory acidosis
,D. Metabolic alkalosis with respiratory compensation
Correct Answer: B
Rationale: The ABG demonstrates chronic respiratory acidosis with appropriate
metabolic compensation. Key findings: pH 7.25 (acidemia), elevated PaCO2 (68 mmHg
= respiratory acidosis), elevated HCO3- (30 mEq/L = metabolic compensation). In acute
respiratory acidosis, HCO3- increases 1 mEq/L for every 10 mmHg PaCO2 increase
(expected ~26). Here, HCO3- is 30, indicating chronic compensation (kidneys have had
time to retain bicarbonate). The 3-day history confirms chronicity.
Why others are incorrect:
● A: Acute respiratory acidosis would show minimal HCO3- elevation (<1 mEq/L
per 10 mmHg PaCO2 rise).
● C: Acute-on-chronic would show pH closer to normal with higher PaCO2 than
baseline; this represents compensated chronic state.
● D: Primary metabolic alkalosis would have elevated pH with increased HCO3-;
here pH is low.
Clinical Alert: In COPD exacerbations, avoid over-correction of chronic hypercapnia
(permissive hypercapnia strategy) to prevent alkalemia and bicarbonate wasting.
Q3: A 58-year-old male presents with sudden onset severe headache, "worst of my life,"
with neck stiffness and photophobia. CT head is negative for hemorrhage. Which is the
next priority diagnostic study?
, A. MRI brain with and without contrast
B. Lumbar puncture for CSF analysis [CORRECT]
C. CTA head and neck
D. EEG to rule out seizure activity
Correct Answer: B
Rationale: This presentation is classic for subarachnoid hemorrhage (SAH) or
meningitis. CT scan has 90-95% sensitivity for SAH within 6 hours, but sensitivity
decreases after 12 hours to ~80% at 24 hours. With negative CT >6 hours from
symptom onset, lumbar puncture is mandatory to detect xanthochromia (RBC
breakdown products) or elevated opening pressure. LP should be performed 12 hours
after headache onset for xanthochromia to develop.
Why others are incorrect:
● A: MRI is sensitive for SAH but less available, more expensive, and not the
standard next step; LP is gold standard when CT negative.
● C: CTA evaluates for aneurysm but only after confirming SAH; also requires
contrast with potential nephrotoxicity.
● D: Seizure is unlikely with this presentation; no post-ictal confusion or witnessed
seizure activity described.
Clinical Alert: Xanthochromia (yellow CSF supernatant) distinguishes true SAH from
traumatic tap. Centrifuge CSF and examine supernatant. Spectrophotometry is most
sensitive.
