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Doctor insights on: Helicobacter Pylori Serology 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

Serology (Definition)

The scientific study of blood serum & other bodily fluids. In practice, it usually refers to identifying antibodies in the serum, which are typically formed in response to an infection (against a microorganism), against other foreign proteins (for example, to proteins in a mismatched blood transfusion), or to one's own proteins (in ...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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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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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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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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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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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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endoscopy show erosive gastritis and biopsy was h.pylori negative, but blood test IGG was positive. do I have h.pylori?

endoscopy show erosive gastritis and biopsy was h.pylori negative,  but blood test IGG was positive.  do I have h.pylori?

Not now..: You have been exposed to H Pylori in the past. But you should not assume all these as 100%. false positive, false negative, wrong sample, wrong reporting etc matter. ...Read more

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H.Pylori ab (igg) positive h mean?

H.Pylori ab (igg) positive h mean?

H Pylori: Means that you have been exposed to h.Pylori in the past...Maybe you were treated already. It does not necessarily mean that you have an active infection. ...Read more

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Can h pylori thyroiditis?

Can h pylori thyroiditis?

No: If you are asking if h pylori can cause thyroiditis then i would have to answer "no.". ...Read more

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Hiv ab,1/2, eia with relx result repeatedly reactive. HIV 1/2ab differentiation w/refl hiv1 antibody negative hiv2 antibody negative. pos or neg hiv?

Hiv ab,1/2, eia with relx result repeatedly reactive. HIV 1/2ab differentiation w/refl hiv1 antibody negative hiv2 antibody negative. pos or neg hiv?

It depends: In a situation like this you have one positive test and one negative test. The lab should run a tie-breaker test (HIV RNA) to give you a real answer. Also, the first test may be an older test 2nd or 3rd generation) instead of the latest 4th generation) test. It also depends on if you have flu-Like symptoms. Seek help from a specialist in HIV who can help you understand. ...Read more

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H. Pylori IgG testing - if once positive, are you always positive?

H. Pylori IgG testing - if once positive, are you always positive?

No: Majority of people will lose their igg positivity after infection has been eradicated. This may take up to a year or more. However, some people will not and maybe never lose their igg and may need a different test to determine their h. Pylori status. ...Read more

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blood test IGG 17.95 positive and IGM 8.50 negative. stool test was negative. do I infect with h.pylori?

 blood test IGG 17.95 positive and IGM 8.50 negative. stool test was negative. do I infect with h.pylori?

Past infection: These results suggest past infection with H. pylori. The blood test can remain positive for years after past infection even if you were treated. The stool test and urea breath test can better detect current infection. The gold standard for testing is a biopsy during endoscopy. https://www.nlm.nih.gov/medlineplus/ency/article/007501.htm ...Read more

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Had EBV test came back EBV nuc IgG ser qi eia positive and EBV vac IgG eia postive. Ebv capsid IgM eia negative. I'm so tired what do this mean?

Had EBV test came back EBV nuc IgG ser qi eia positive and EBV vac IgG eia postive. Ebv capsid IgM eia negative. I'm so tired what do this mean?

Makes perfect sense: Igm antibodies rise only during the actual, acute infection. They then fade away and are replaced by the various igg antibodies, which are the ones that provide lifetime protection against the same strain of the virus. So your numbers are consistent with the fact you had mono years ago. There is no igm, and positive igg levels. So you are immune and do not currently have mono. ...Read more

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What antibiotics work for helicobacter pylori infection?

What antibiotics work for helicobacter pylori infection?

Various: Confirmed h pylori infections traditionally requires triple therapy. 2 abx and an antacid. These abx are tetracycline, amoxillin, metronidazole, macrolides. There are various combinations to these so ask your healthcare provider. ...Read more

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H.pylori blood test IGG positive and IGM negative. I didn't treat h.pylori before the test. do I have h.pylori?

Hard to know: I believe that the prevalence of H. pylori is much higher in Phnom Penh than in most of the United States. Without knowing any specifics about the test that was used, I suspect the positive predictive value is high considering your location. This is increased given your history of gastritis. Treatment is straightforward and effective and should be considered. ...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