Questions And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A |
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1. A 23-year-old woman presents with fatigue and pallor. Labs show
MCV 72 fL, ferritin 8 ng/mL. What is the most likely cause?
A. Thalassemia minor
B. Iron deficiency anemia
C. Anemia of chronic disease
D. Sideroblastic anemia
Iron deficiency anemia presents with low MCV and low ferritin.
2. A patient has pinpoint pupils, respiratory depression, and
bradycardia. What substance is responsible?
A. Cocaine
B. Benzodiazepines
C. Opioids
D. Amphetamines
Opioid toxicity classically causes miosis and respiratory
depression.
3. A 4-year-old has a barking cough and inspiratory stridor.
Diagnosis?
,A. Epiglottitis
, B. Croup
C. Asthma
D. Bacterial tracheitis
Croup causes a barking cough due to parainfluenza virus.
4. A patient with rheumatoid arthritis develops progressive dyspnea.
CXR shows interstitial fibrosis. Medication causing this?
A. Methotrexate
B. Hydroxychloroquine
C. TNF-alpha inhibitors
D. Leflunomide
TNF inhibitors increase risk of interstitial lung disease.
5. A man collapses while running; ECG reveals long QT. Which
electrolyte abnormality causes this?
A. Hyperkalemia
B. Hypokalemia
C. Hypernatremia
D. Hypercalcemia
Low potassium prolongs repolarization.
6. A woman has heat intolerance, weight loss, and tremor. TSH is
low; T3/T4 elevated. Cause?
A. Subacute thyroiditis
B. Graves disease
C. Hashimoto thyroiditis
D. Silent thyroiditis
TSI antibodies stimulate TSH receptors in Graves disease.
7. A child with Down syndrome has a harsh systolic murmur. Most
common heart defect?