How to prepare for Helicobacter Check

Preparation for a Helicobacter pylori test depends on the method used. For a breath test (13C-urea breath test), you must fast for at least 4–6 hours and avoid antibiotics, bismuth preparations, and proton pump inhibitors (PPIs) for four weeks prior. For a stool antigen test, similar restrictions apply: no antibiotics or PPIs for four weeks, and no acid-suppressing medications (e.g., omeprazole) for two weeks. A blood antibody test requires no special preparation but cannot distinguish between active and past infection. The provided context does not contain specific instructions for a Helicobacter check. These recommendations are based on general clinical practice. Always consult your physician or the testing laboratory for individual requirements.