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USMLE Step 1 Community
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28 Apr 2026
Exam prep
Question:
A 40-year-old man who recently traveled to Asia presents with dyspepsia that is relieved with meals. Upper endoscopy reveals a nodular mucus membrane in the stomach and multiple ulcers. Biopsies were taken and cultures grew spiral-shaped gram-negative bacteria. What is the most likely organism responsible for the patient's symptoms?
Options:
A)Escherichia coli
B)Streptococcus pneumoniae
C)Neisseria meningitidis
D)Clostridium perfringens
E)Helicobacter pylori
Exam prep
Question:
A 40-year-old man who recently traveled to Asia presents with dyspepsia that is relieved with meals. Upper endoscopy reveals a nodular mucus membrane in the stomach and multiple ulcers. Biopsies were taken and cultures grew spiral-shaped gram-negative bacteria. What is the most likely organism responsible for the patient's symptoms?
Options:
A)Escherichia coli
B)Streptococcus pneumoniae
C)Neisseria meningitidis
D)Clostridium perfringens
E)Helicobacter pylori
E
E