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A 26-year-old male asked:

How long should i wait to take breath test for h. pylori after 7 day antibiotic treatment? (antibiotics: tetracyline, omeprazole, metronidazole)

2 doctor answers7 doctors weighed in
Dr. Paul Cohen
Family Medicine 28 years experience
When you are ready?: I usually judge a patients progress by their symptoms; if after the course of treatment your symptoms have subsided then there is no real need for repeating the breath test. However, if you are being sent for it, then ask your doctor when you should go; i see no harm in undergoing the test the day or two after you have taken the last of the treatment.
Dr. Vivek Huilgol
Gastroenterology 35 years experience
Blood test USELESS in this scenaroi. imaging you had measles as a kid - your blod test will still be positve - but you don't have the disease... similarly, a positive antibody test, tells you nothing post-treatment.
Dec 19, 2011
Dr. Vivek Huilgol
Gastroenterology 35 years experience
Blood test USELESS in this scenario. Imagine you had measles as a kid - your blood test will still be positive - but you don't have the disease... Similarly, a positive antibody test, tells you nothing post-treatment. (typos corrected...)
Dec 19, 2011
Dr. Andrew Seibert
Gastroenterology 35 years experience
Actually, with either the breath test or the stool test, you should be off antibiotics for at least a month before doing the test. As Dr. Huilgol stated, avoid the blood test.
Jan 28, 2015
Dr. Vivek Huilgol
Gastroenterology 35 years experience
A few weeks: If the antibiotics do not kill all the h pylori, they will reduce their numbers. Having the breath test too soon may give you a false negative result (ie the test will say clear but you aren't). However I am not sure you should use the breath test at all unless there is a really good reason to do so.
Dr. Vivek Huilgol
Gastroenterology 35 years experience
Provided original answer
How was the diagnosis made int he first instance? You could wait a couple of months and use the stoool test - mght sound 'dirty' but likely 'better for you' than the uncessary radiation of the 'breath test' - which is a nuclear medicine test...
Dec 19, 2011

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Last updated Jan 28, 2015

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