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Doctor insights on: How Long Should You Wait To Take A Breath Test After Antibiotics

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It is day 5 after treatment for h. Pylori, and i still have the runs. How long will this last? Can i take a breath test 2 weeks after treatment?

It is day 5 after treatment for h. Pylori, and i still have the runs. How long will this last? Can i take a breath test 2 weeks after treatment?

Call ur doc: H pylori doesn't usually cause diarrhea. Any antibiotic can cause diarrhea, might resolve after stopping antibiotic.Ongoing diarrhea after even a short course of antibiotics can cause overgrowth of bacteria called c. Difficile- can cause inflammation, diarrhea, fever, bleeding, worse. Need to be off antibiotics for at least 4 wks before breath or stool tests for h pylori. ...Read more

Dr. John Leander Po
1,117 doctors shared insights

Antibiotic (Definition)

An antibiotic is a medicine that slows, stops, or kills germs. The germs are usually bacteria causing an infection in a person, so the person uses antibiotics to help his body get ...Read more


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Why can't you take antibiotics 4 weeks before urea breath test?

Why can't you take antibiotics 4 weeks before urea breath test?

Helicobacter pylori: If antibiotics are depressing the amount of h. Pylori present, or the stomach conditions are less acidic than normal, the amount of urease present will be lessened, making the test inaccurate. ...Read more

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Have taken antibiotics for h.pylori.when it's best for me to take the breath test to get an accurate results?

Have taken antibiotics for h.pylori.when it's best for me to take the breath test to get an accurate results?

Comp,tee your antibi: First complete the regimen of medications, then you must come off of the medicine and wait 14 days and then you do your test of cure with the urea breathe test to be sure the h pylori is gone ...Read more

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I finished h.pylori antibiotic. 2 week after the treatment the breath test was positive and the stool test was negative. do i still have h.pylori?

I finished h.pylori antibiotic. 2 week after the treatment the breath test was positive and the stool test was negative. do i still have h.pylori?

Too soon to test: Testing to ensure you've cleared the infection should happen about 6 weeks after you finish the treatment. Breath test is more accurate than the stool test which is still quite accurate. Hope this helps and you feel better! ...Read more

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

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

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. ...Read more

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Hi I am having a breath test for smoking how long does it take to come out your system?

Hi I am having a breath test for smoking how long does it take to come out your system?

Several days: Carbon Monoxide, rather than nicotine or cotinine (it's main metabolite) is what is measured in the breath test, and smokers have a higher level of exhaled carbon monoxide. Since carbon monoxide complexes with red blood cells for the life of that blood cell, if you are a heavy smoker, you may be exhaling carbon monoxide in breath for many days after smoking. It can be detected up to 72 hours. ...Read more

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Is amitiza (lubiprostone) a laxative and how does it affect sibo breath test if i take it a week before. Also how long does it take amitiza (lubiprostone) 8mcg to work?

Is amitiza (lubiprostone) a laxative and how does it affect sibo breath test if i take it a week before. Also how long does it take amitiza (lubiprostone) 8mcg to work?

Yes and no: Amitiza (lubiprostone) is a novel type of "laxative". Technically speaking, it is a locally acting chloride channel activator in the gut. It should not affect the breath test (which measures for bacterial overgrowth). It's onset of action can range from a few minutes to a few hours dependent upon your motility. ...Read more