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Doctor insights on: Helicobacter Urease Test

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Erosive gastritis. h.pylori blood test positive, breath test positive, stool antigen test negative, biopsy negative. what to do ?

Erosive gastritis. h.pylori blood test positive, breath test positive, stool antigen test negative, biopsy negative.  what to do ?

Treat it: The positive H. pylori antibody test is not a reliable indicator of current infection. The gold standard for H. pylori treatment is the gastric biopsy, and this is negative in this patient. However, I am impressed by the positive breath test and erosive gastritis. I would have expected stool antigen to be positive, as it mirrors the breath test. Given the discrepant results, treat the patient. ...Read more

Dr. Andrew Seibert
559 doctors shared insights

Helicobacter Pylori (Definition)

H. pylori is a bacterium which commonly infects the mucus layer in the stomach. It can cause chronic inflammation of the lining of the stomach, and over the course of many years can increase the risk of gastric or duodenal ulcer. It can ...Read more


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Can a blood test diagnose helicobacter pylori?

Can a blood test diagnose helicobacter pylori?

H. Pylori: Yes. Of course. This is the most common way h. Pylori is diagnosed. ...Read more

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Helicobacter pylori test, how to interpret results?

Helicobacter pylori test, how to interpret results?

Helicobacter tests: Rapid tests for h. pylori are based on it's fairly unique enzyme urease, producing ammonia. This can be detected in gas (breath test), or pH-based media testing of tissue samples. The best test is a biopsy, perhaps with direct detection by IHC. The latter method also can find other complications like cancer. Stool antigen tests are also available. Serologic tests only tell if you have ever had it. ...Read more

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Blood tests positive but biopsy and urease test negative for h.pylori. Is this normal?

Blood tests positive but biopsy and urease test negative for h.pylori. Is this normal?

The blood test for: H. Pylori checks for antibodies against the bacterium. Antibodies are proteins that help your body fight off infection and they may be detectable indefinitely, even for a lifetime. Biopsy & urease tests check for presence of an active infection. (+) H. Pylori blood test with negative biopsy & urease suggests you had the infection in the past but that it's not currently active. ...Read more

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What happens if "h. pylori IgG antibodies serum by ELISA positive"?

What happens if "h. pylori IgG antibodies serum by ELISA positive"?

H. pylori infection: .. which causes gastritis with symptoms of early satiety, abdominal pain, heartburn. If you are symptomatic, then you will need the treatment. If you are not symptomatic or have responded to treatment already, then your test result indicates ongoing antibody production (normal immune response to previous infection) and no treatment is required. Good luck! ...Read more

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Does basic blood test (cbc) tests for h pylori bacteria?

Does basic blood test (cbc) tests for h pylori bacteria?

No: A CBC or complete blood count checks white blood cells, red blood cells, and platelet counts. There is a serologic test for h pylori which can be used to screen for infection, but can not be used after treatment as it can remain positive. A stool test, breath test, or biopsy can be used to check for eradication after treatment. ...Read more

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Chronic gastritis; chronic duodenitis, hyperemic gastric mucosa; positive helicob. Pylori stool test. Do i need treatment for helicobacter pylori?

Chronic gastritis; chronic duodenitis, hyperemic gastric mucosa; positive helicob. Pylori stool test. Do i need treatment for helicobacter pylori?

Helicobacter pylori: Yes, you definitely need treatment. This organism can promote the development of gastric cancer as well as producing the inflammatory changes in your GI tract that you have noted and which must be producing severe symptoms. ...Read more

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Is the citric acid c-urea breath test effective to test for h. Pylori?

Is the citric acid c-urea breath test effective to test for h. Pylori?

Yes: The best tests for h pylori infection are the breath and the fecal testing. These are able to distinguish between active and past infections which the blood antibody testing is not. ...Read more

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What does lactose fermenting gram negative bacilli urine mean?

What does lactose fermenting gram negative bacilli urine mean?

Probably E Coli: There are many dozens of bacteria that can be lactose fermenting gram negative bacilli. This is just a classification scheme based on gram positive or negative; rod (bacillus) or cocci (ball); and what they grow on in a laboratory evaluation. Examples include e. Coli, klebsiella, enterobacter, citrobacter. ...Read more

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Can you detect spirochete infections(leptospirosis, borreliosis, syphilis) via blood culture tests? If not, why?

Can you detect spirochete infections(leptospirosis, borreliosis, syphilis) via blood culture tests?  If not, why?

Spirochaetes: These organisms are exceptionally difficult, if not impossible, to grow in artificial media. They can be diagnosed by special stains, serologically by antibody formation, and in some instances by detection of antigens by nuclear protein detection. ...Read more

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Is a blood test for H. Pylori reliable?

Is a blood test for H. Pylori reliable?

Yes, initially : The H. Pylori blood test is >90% sensitive and specific for H. Pylori infection in the past. It is best used to diagnose the early/initial stages of infection. The only limitation is that the blood test remains positive for quite a while after successful treatment for H. Pylori, so it should not be used as a marker for eradication. ...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 is: Focal chronic  peptic-type duodenitis.  H. Pylori negative.

What is: Focal chronic  peptic-type duodenitis.  H. Pylori negative.

Breaking it down...: Focal = a spot, not all over. Chronic = constant, not once-in-a-while. Peptic-type = damaged by exposure to stomach acid. Duodenitis = inflammation/damage of duodenum, the very beginning of the small intestine that actually connects to the end of your stomach. H. Pylori negative = it was not associated with a bacterial infection that is well known to cause ulcers. Hope that is helpful. ...Read more

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