CORRECT ANSWERS WITH RATIONALES
GRADED A+ LATEST
1. A 4-year-old child presents with a fever of 39.2°C, cough, and difficulty
breathing. On exam, you note nasal flaring and intercostal retractions. What
is the most appropriate next step?
A. Start oral antibiotics and send home
B. Obtain a chest X-ray and pulse oximetry
C. Provide supportive care only
D. Order a CT scan
Correct Answer: B
Rationale: The signs of respiratory distress (nasal flaring, retractions) require
evaluation with pulse oximetry and chest imaging to rule out pneumonia or
bronchiolitis.
2. A patient with type 2 diabetes reports burning foot pain and numbness.
What is the most likely diagnosis?
A. Peripheral vascular disease
B. Diabetic neuropathy
C. Plantar fasciitis
D. Osteomyelitis
Correct Answer: B
Rationale: Burning pain and numbness in a diabetic patient is classic for diabetic
peripheral neuropathy.
,3. A patient has sudden onset of severe chest pain radiating to the back, with
unequal blood pressures in both arms. What is the most likely diagnosis?
A. Myocardial infarction
B. Pulmonary embolism
C. Aortic dissection
D. Panic attack
Correct Answer: C
Rationale: Chest pain radiating to the back with asymmetric arm pressures
suggests aortic dissection — a medical emergency.
4. A 60-year-old with atrial fibrillation is not anticoagulated. What is the most
significant risk?
A. Heart failure
B. Stroke
C. Myocarditis
D. Peripheral neuropathy
Correct Answer: B
Rationale: AF increases thromboembolic risk; stroke is the most severe
complication.
5. Which medication is first-line for an acute asthma exacerbation?
A. Inhaled corticosteroid
B. Oral leukotriene inhibitor
C. Short-acting beta agonist
D. Long-acting beta agonist
Correct Answer: C
Rationale: Short-acting beta agonists (albuterol) are first-line for acute asthma
symptoms.
,6. A patient presents with fever, dysuria, and flank pain. Which is the most
likely diagnosis?
A. Cystitis
B. Pyelonephritis
C. Urethritis
D. Nephrolithiasis
Correct Answer: B
Rationale: Fever + dysuria + flank pain suggests upper urinary tract infection
(pyelonephritis).
7. Which of the following is a hallmark symptom of bacterial meningitis?
A. Chronic cough
B. Neck stiffness
C. Joint pain
D. Abdominal cramping
Correct Answer: B
Rationale: Neck stiffness (nuchal rigidity) is a classic sign of meningitis.
8. A 25-year-old female presents with abdominal pain in the right lower
quadrant and rebound tenderness. What is the most likely diagnosis?
A. Ovarian cyst
B. Appendicitis
C. Ectopic pregnancy
D. Urinary tract infection
Correct Answer: B
Rationale: RLQ pain with rebound tenderness is highly suspicious for
appendicitis.
, 9. Which lab value is most important to check in a patient starting warfarin?
A. Creatinine
B. INR
C. Hemoglobin
D. Platelets
Correct Answer: B
Rationale: INR is required to monitor warfarin anticoagulation.
10. A patient presents with sudden right-sided weakness and slurred speech.
What is the priority?
A. Give aspirin immediately
B. Start IV antibiotics
C. Perform CT scan to rule out hemorrhage
D. Begin insulin therapy
Correct Answer: C
Rationale: Stroke evaluation requires immediate CT to determine hemorrhagic vs
ischemic before treatment.
11.
A 45-year-old male presents with progressive shortness of breath and a chronic
productive cough for 10 years. He has a 30-pack-year smoking history. On exam,
you hear prolonged expiratory wheezing and decreased breath sounds. What is the
most likely diagnosis?
Correct Answer: Chronic obstructive pulmonary disease (COPD)
Rationale: Long-term smoking, chronic productive cough, and wheezing with
decreased breath sounds are classic for COPD.