Helicobacter Pylori Tests
How To Prepare continued...
Do not eat or drink for at least 6 hours before a breath test or
a stomach biopsy.
Many medicines may change the results of this test. Be sure to
tell your doctor about all the prescription and nonprescription medicines you
take. Your doctor may recommend that you stop taking some of your medicines.
- Do not take antibiotics or medicines containing bismuth (such as Pepto-Bismol) for 1 month before the test.
- Do not take proton pump inhibitors for 2 weeks before the test.
- Do not take H2
blockers, such as Pepcid, Zantac, Axid, or Tagamet, for 24 hours before the
Talk to your doctor about any concerns you have
about the need for the test, its risks, how it will be done, or what the
results may mean. To help you understand the importance of this test, fill out
medical test information form(What is a PDF document?).
How It Is Done
Blood antibody test
The health professional taking a sample of your blood
- Wrap an elastic band around your upper arm to stop the flow of
blood. This makes the veins below the band larger so it is easier to put a
needle into the vein.
- Clean the needle site with
- Put the needle into the vein. More than one needle stick
may be needed.
- Attach a tube to the needle to fill it with
- Remove the band from your arm when enough blood is
- Put a gauze pad or cotton ball over the needle site as
the needle is removed.
- Put pressure on the site and then put on a
Urea breath test
The breath sample is collected when you blow into a balloon or
blow bubbles into a bottle of liquid. The health professional taking a sample
of your breath will:
- Collect a sample of your breath before the
- Give you a capsule or some water to swallow that
contains tagged or radioactive material.
- Collect samples of your
breath at different times. The breath samples will be tested to see if
they contain material formed when H. pylori comes into
contact with the tagged or radioactive material.
- The urea breath test
usually takes about 30 minutes.
Stool antigen test