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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?

Have Runs Checked: Treatment of h. Pylori involves the use of antibiotics which can disrupt the bacterial flora of the colon and cause diarrhea which often abates after the therapy has been completed. Sometimes, this flora disruption leads to an overgrowth of c. Difficile which can cause severe diarrhea, fever, bloody stool, sepsis or worse. Check yourself out for c. Difficile. Wait 4 weeks to check 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

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Can I take probiotics (Florastor) up until the date of having the h pylori breath test? Will this effect it?

Can I take probiotics (Florastor) up until the date of having the h pylori breath test?
Will this effect it?

Probiotics & Hpylori: Here's a reference that indicates that some probiotics may improve eradication of H.pylori-- thus would be expected to alter pre- and post-antibiotic treatment breath test results. Ref.http://www.medscape.com/viewarticle/763163 ...Read more

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If there is no "cure" for SIBO, is it dangerous to not take abx? Have history of C Diff & try to avoid abx. Have heard breath test isn't accurate?

If there is no "cure" for SIBO, is it dangerous to not take abx? Have history of C Diff & try to avoid abx. Have heard breath test isn't accurate?

SIBO: Antibiotic therapy for this complex condition with multiple potentially contributory factors is problematic, but may yield some positive results. With history of C. difficile colitis there must be an assessment of risk/benefit ratio on the part of you and your treating doctor. There are probiotics (Saccharomyces) that may help to reduce risk, but there is no definitive yes or no answer. Good luck ...Read more

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Breath test says positive for sibo, but my only symptom is post-prandial chest discomfort and muscle twitching. Should i still take xifaxin?

Breath test says positive for sibo, but my only symptom is post-prandial chest discomfort and muscle twitching.  Should i still take xifaxin?

SIBO: Small intestinal bacterial overgrowth can occur as a complication of numerous conditions. Without having seen and examined and tested you there is no way to determine whether the therapy you have been prescribed by another doctor is correct or not. If you are not confident in your doctor's diagnosis, go and get a second opinion from someone who can evaluate you face to face. Good luck. ...Read more

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Told I have SIBO and need Xifaxan (rifaximin). Had hydrogen breath test. Is there other treatment for SIBO other than antibiotics? Can't take Xifaxan (rifaximin) due2 allergy

Told I have SIBO and need Xifaxan (rifaximin). Had hydrogen breath test. Is there other treatment for SIBO other than antibiotics? Can't take Xifaxan (rifaximin) due2 allergy

Drug allergy: Isn't generic, meaning if you're allergic to one drug then u r allergic to all others. Also drug allergy is often confused with adverse drug reactions,so a patient can't tell if it is a true drug allergy or just an adverse reaction. If you are allergic to xifaxan, (rifaximin) other antibiotics are there to use. Also ask your doctor about probiotics, and elemental diet to treat your condition, best wishes ...Read more

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Breath test= positive sibo due to double peak hydrogen counts. Egd = duodenal lymphocytosis. Negative celiac. Should i take xifaxin if only symptoms is gas?

Breath test= positive sibo due to double peak hydrogen counts. Egd = duodenal lymphocytosis. Negative celiac. Should i take xifaxin if only symptoms is gas?

It's Worth a Try: There is very little downside in taking xifaxan, (rifaximin) since it is basically a non-absorbable antibiotic. Duodenal lymphocytosis may be a non-specific finding, and if your only symptom is excessive gas, then trying this relatively safe antibiotic might just work. ...Read more

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What’s the h. Pylori breath test?

What’s the h. Pylori breath test?

See below: The test that i think of for breath testing is for helicobacter pylori, which is a bacterial infection of the stomach that can cause gastritis or stomach ulcers. This test is accurate and currently seems to be preferred over blood testing for h. Pylori. There have been some breath testing for intestinal bacterial overgrowth problems, but I do not know if it is performed much anymore. ...Read more

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If I have a positive fructose breath test what does that mean?

If I have a positive fructose breath test what does that mean?

Problem digesting: A positive test indicates trouble digesting fructose, a type of sugar. Symptoms included diarrhea, bloating and cramping. ...Read more

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Why fast before urea breath test?

Why fast before urea breath test?

Accuracy of test: This urea breath test is for detecting h.Pylori, a bacterium, that can cause peptic ulcer disease.Helicobacter pylori lives in the stomach and breaks down urea.This natural substance found in normal humans.Capsule is swallowed with urea attached to radiactive label c14. After 15 min. Breath into balloon which is analized to determine presence of bacteria. Food and certain medications interfere. ...Read more

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Why is hydrogen breath test performed?

Why is hydrogen breath test performed?

LACTOSE,FRUCTOSE INT: This test is done to diagnose lactose and fructose intolerance small bpwel bacterial overgrowth other sugars malabsorption, like sucrose, mannitol, sorbitro, glucose and lactulose. ...Read more