1
APEA PREDICTOR TEST BANK 2025/2026 –
200 UPDATED QUESTIONS WITH CORRECT
ANSWERS & COMPLETE SOLUTIONS |
GRADED A+
1. A 68-year-old male is evaluated for sudden-onset right-sided weakness and expressive
aphasia. A non-contrast head CT scan rules out acute intracranial hemorrhage. What is
the critical therapeutic window for the administration of intravenous recombinant tissue
plasminogen activator (rt-PA)?
A. Within 1 hour of symptom onset
B. Within 3.5 to 4.5 hours of symptom onset
C. Within 12 hours of symptom onset
D. Within 24 hours of symptom onset
Correct Answer: B
Explanation: For acute ischemic stroke, intravenous thrombolytic therapy with rt-PA is most
beneficial when administered within a strict time window. Professional guidelines extend this
window up to 4.5 hours from symptom onset in carefully selected eligible patients.
Administering rt-PA outside this window significantly increases the risk of fatal intracranial
hemorrhage. Option A refers to door-to-needle time targets, not the therapeutic limit. Options C
and D exceed the accepted window.
2. A 4-year-old child is brought to the pediatric clinic with a 2-day history of high fever,
barking cough, and inspiratory stridor that worsens at night. A neck radiograph reveals a
classic "steeple sign." What is the most common viral etiology of this presentation?
A. Respiratory syncytial virus (RSV)
, 2
B. Parainfluenza virus
C. Adenovirus
D. Bordetella pertussis
Correct Answer: B
Explanation: The clinical picture of barking cough, inspiratory stridor, and the characteristic
subglottic narrowing ("steeple sign") on radiography defines croup (laryngotracheobronchitis).
Croup is most frequently caused by human parainfluenza viruses. RSV is the primary cause of
bronchiolitis in infants. Bordetella pertussis causes whooping cough with paroxysmal coughing
fits.
3. A 72-year-old male with a history of hypertension presents with the acute onset of a
tearing chest pain that radiates to the back. His blood pressure is 180/95 mmHg in the
right arm and 130/80 mmHg in the left arm. What is the most likely diagnosis?
A. Acute Myocardial Infarction
B. Aortic Dissection
C. Pulmonary Embolism
D. Pericarditis
Correct Answer: B
Explanation: This presentation is classic for aortic dissection. Key features include sudden onset
of severe, tearing chest pain radiating to the back, accompanied by a significant blood pressure
differential between arms (≥20 mmHg). Myocardial infarction typically presents with pressure-
like chest pain. Pulmonary embolism presents with pleuritic pain and dyspnea. Pericarditis pain
worsens when lying flat.
4. A 65-year-old male with a 40-pack-year smoking history presents with progressive
shortness of breath, chronic cough, and peripheral edema. Physical examination reveals
jugular venous distention and hepatomegaly. Which pathophysiological process best
, 3
explains these findings?
A. Left-sided heart failure with pulmonary congestion
B. Right-sided heart failure with systemic venous congestion
C. Chronic obstructive pulmonary disease (COPD)
D. Cor pulmonale with left ventricular failure
Correct Answer: B
Explanation: The patient's presentation (peripheral edema, JVD, hepatomegaly) is classic for
right-sided heart failure with systemic venous congestion. The smoking history and chronic
respiratory symptoms suggest underlying COPD, which can lead to pulmonary hypertension and
cor pulmonale. Left-sided heart failure presents with pulmonary congestion.
5. A 45-year-old patient presents with sudden chest pain radiating to the left arm. Which is
the priority action?
A. Administer ibuprofen
B. Obtain a 12-lead ECG
C. Schedule stress test
D. Give oral fluids
Correct Answer: B
Explanation: Chest pain with radiation suggests acute coronary syndrome; ECG is the first
diagnostic step. Ibuprofen is not indicated, stress testing is inappropriate during acute
presentation, and oral fluids do not address the priority diagnostic need.
6. Which finding is most consistent with diabetic ketoacidosis (DKA)?
A. Bradycardia
B. Metabolic alkalosis
C. Kussmaul respirations
D. Hypoglycemia
, 4
Correct Answer: C
Explanation: Deep, rapid breathing (Kussmaul respirations) is a compensatory mechanism for
metabolic acidosis in DKA. DKA presents with tachycardia, metabolic acidosis, and
hyperglycemia, not bradycardia, alkalosis, or hypoglycemia.
7. First-line treatment for anaphylaxis is:
A. Diphenhydramine
B. Epinephrine
C. Albuterol
D. Corticosteroids
Correct Answer: B
Explanation: Epinephrine reverses airway swelling, vasodilation, and bronchospasm
immediately. Diphenhydramine, albuterol, and corticosteroids are adjunctive treatments but not
first-line for anaphylaxis.
8. Which lab is most indicative of kidney function?
A. ALT
B. Creatinine
C. Amylase
D. Troponin
Correct Answer: B
Explanation: Creatinine reflects glomerular filtration rate and renal function. ALT indicates liver
function, amylase indicates pancreatic function, and troponin indicates cardiac muscle damage.
9. A patient with COPD should be given oxygen cautiously to avoid:
A. Hypercarbia
APEA PREDICTOR TEST BANK 2025/2026 –
200 UPDATED QUESTIONS WITH CORRECT
ANSWERS & COMPLETE SOLUTIONS |
GRADED A+
1. A 68-year-old male is evaluated for sudden-onset right-sided weakness and expressive
aphasia. A non-contrast head CT scan rules out acute intracranial hemorrhage. What is
the critical therapeutic window for the administration of intravenous recombinant tissue
plasminogen activator (rt-PA)?
A. Within 1 hour of symptom onset
B. Within 3.5 to 4.5 hours of symptom onset
C. Within 12 hours of symptom onset
D. Within 24 hours of symptom onset
Correct Answer: B
Explanation: For acute ischemic stroke, intravenous thrombolytic therapy with rt-PA is most
beneficial when administered within a strict time window. Professional guidelines extend this
window up to 4.5 hours from symptom onset in carefully selected eligible patients.
Administering rt-PA outside this window significantly increases the risk of fatal intracranial
hemorrhage. Option A refers to door-to-needle time targets, not the therapeutic limit. Options C
and D exceed the accepted window.
2. A 4-year-old child is brought to the pediatric clinic with a 2-day history of high fever,
barking cough, and inspiratory stridor that worsens at night. A neck radiograph reveals a
classic "steeple sign." What is the most common viral etiology of this presentation?
A. Respiratory syncytial virus (RSV)
, 2
B. Parainfluenza virus
C. Adenovirus
D. Bordetella pertussis
Correct Answer: B
Explanation: The clinical picture of barking cough, inspiratory stridor, and the characteristic
subglottic narrowing ("steeple sign") on radiography defines croup (laryngotracheobronchitis).
Croup is most frequently caused by human parainfluenza viruses. RSV is the primary cause of
bronchiolitis in infants. Bordetella pertussis causes whooping cough with paroxysmal coughing
fits.
3. A 72-year-old male with a history of hypertension presents with the acute onset of a
tearing chest pain that radiates to the back. His blood pressure is 180/95 mmHg in the
right arm and 130/80 mmHg in the left arm. What is the most likely diagnosis?
A. Acute Myocardial Infarction
B. Aortic Dissection
C. Pulmonary Embolism
D. Pericarditis
Correct Answer: B
Explanation: This presentation is classic for aortic dissection. Key features include sudden onset
of severe, tearing chest pain radiating to the back, accompanied by a significant blood pressure
differential between arms (≥20 mmHg). Myocardial infarction typically presents with pressure-
like chest pain. Pulmonary embolism presents with pleuritic pain and dyspnea. Pericarditis pain
worsens when lying flat.
4. A 65-year-old male with a 40-pack-year smoking history presents with progressive
shortness of breath, chronic cough, and peripheral edema. Physical examination reveals
jugular venous distention and hepatomegaly. Which pathophysiological process best
, 3
explains these findings?
A. Left-sided heart failure with pulmonary congestion
B. Right-sided heart failure with systemic venous congestion
C. Chronic obstructive pulmonary disease (COPD)
D. Cor pulmonale with left ventricular failure
Correct Answer: B
Explanation: The patient's presentation (peripheral edema, JVD, hepatomegaly) is classic for
right-sided heart failure with systemic venous congestion. The smoking history and chronic
respiratory symptoms suggest underlying COPD, which can lead to pulmonary hypertension and
cor pulmonale. Left-sided heart failure presents with pulmonary congestion.
5. A 45-year-old patient presents with sudden chest pain radiating to the left arm. Which is
the priority action?
A. Administer ibuprofen
B. Obtain a 12-lead ECG
C. Schedule stress test
D. Give oral fluids
Correct Answer: B
Explanation: Chest pain with radiation suggests acute coronary syndrome; ECG is the first
diagnostic step. Ibuprofen is not indicated, stress testing is inappropriate during acute
presentation, and oral fluids do not address the priority diagnostic need.
6. Which finding is most consistent with diabetic ketoacidosis (DKA)?
A. Bradycardia
B. Metabolic alkalosis
C. Kussmaul respirations
D. Hypoglycemia
, 4
Correct Answer: C
Explanation: Deep, rapid breathing (Kussmaul respirations) is a compensatory mechanism for
metabolic acidosis in DKA. DKA presents with tachycardia, metabolic acidosis, and
hyperglycemia, not bradycardia, alkalosis, or hypoglycemia.
7. First-line treatment for anaphylaxis is:
A. Diphenhydramine
B. Epinephrine
C. Albuterol
D. Corticosteroids
Correct Answer: B
Explanation: Epinephrine reverses airway swelling, vasodilation, and bronchospasm
immediately. Diphenhydramine, albuterol, and corticosteroids are adjunctive treatments but not
first-line for anaphylaxis.
8. Which lab is most indicative of kidney function?
A. ALT
B. Creatinine
C. Amylase
D. Troponin
Correct Answer: B
Explanation: Creatinine reflects glomerular filtration rate and renal function. ALT indicates liver
function, amylase indicates pancreatic function, and troponin indicates cardiac muscle damage.
9. A patient with COPD should be given oxygen cautiously to avoid:
A. Hypercarbia
