A 33-year-old man presents with dyspepsia; noninvasive testing confirms H. pylori infection. No prior therapy or known susceptibility testing. Which r...

Question

A 33-year-old man presents with dyspepsia; noninvasive testing confirms H. pylori infection. No prior therapy or known susceptibility testing. Which regimen is preferred?

Accepted Answer

Bismuth quadruple therapy (PPI + bismuth + tetracycline + metronidazole) ×14 d

Answer

Clarithromycin triple therapy (PPI + clarithromycin + amoxicillin) ×10 d

Answer

Sequential therapy with amoxicillin then clarithromycin-based

Answer

Doxycycline-based quadruple therapy ×10 d

Answer

Levofloxacin triple therapy first-line

us-abim MCQ (SBA): Helicobacter pylori

A 33-year-old man presents with dyspepsia; noninvasive testing confirms H. pylori infection. No prior therapy or known susceptibility testing. Which regimen is preferred?