Q- A 45-year-old man presents with epigastric pain that improves with eating. Endoscopy reveals a duodenal ulcer.
Which organism is most commonly responsible for this condition?
A- Campylobacter jejuni
B- Clostridioides difficile
C- Helicobacter pylori
D- Vibrio cholerae
Q- A 70-year-old man presents with progressive difficulty initiating urination and a weak urinary stream. Biopsy reveals nodular enlargement of the periurethral prostate glands.
What is the most likely diagnosis?
A- Benign prostatic hyperplasia
B- Prostate adenocarcinoma
C- Prostatic intraepithelial neoplasia
D- Prostatitis
Q- A 32-year-old woman presents with fatigue and dark urine. Laboratory studies show anemia, elevated LDH, and decreased haptoglobin. A direct Coombs test is positive.
What is the most likely diagnosis?
A- Autoimmune hemolytic anemia
B- Glucose-6-phosphate dehydrogenase deficiency
C- Hereditary spherocytosis
D- Sickle cell disease
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More Repeated USMLE Questions Step 1
