Only registered users are allowed to post. To register, please click here

To reduce SPAM, all post from new members with less than 1 post will require approval from web master.

Should you have any problem in posting, registering, or login, please do not hesitate to contact the admin.
Contact admin click here

Positive Stool HpSA but Negative UBT??

New things in the forums might be highlighted here. Take a look at the avatars! Get yourself one, there are hundreds to choose from.

Moderators: Toni, barjammar

Post Reply
Posts: 1
Joined: Tue Apr 14, 2015 2:28 pm

Positive Stool HpSA but Negative UBT??

Post by Klax79 » Tue Apr 14, 2015 2:55 pm

Was ordered by my doc to a gut test as she suspected it was functionally poorly (I was having problem raising my FT3 levels with meds for my Thyroid problem, so she wanted to check if its due to poor absorption in the gut). Test came back with positive H Pylori antibodies from the stool sample, so she had me take a UBT to confirm (which came back negative). I was not on any antibiotics or meds (except for my Thyroid condition with the doc said was fine) 4 weeks prior to the UBT so it should not have given a "false-negative".

I do not have or suffer from any of the reported symptoms, so my doc concluded that I DO NOT have H Pylori since the UBT came back negative. She explained that the detected stool antibodies were probably due to an old infection (not active) since UBT did not detect any.

Is that correct??? I've been reading up a lot on H Pylori and I'm just confused with the Positive HpSA with Negative UBT results. I read that positive HpSA in stool means ACTIVE H Pylori, which is more accurate than Serum antibodies (which cannot differentiate between old or new infection). Which is true then, the HpSA or UBT?

Anyone can shed some light on this?

Site Admin
Posts: 2166
Joined: Wed Mar 02, 2011 7:20 am

Re: Positive Stool HpSA but Negative UBT??

Post by Helico_expert » Wed Apr 15, 2015 11:51 am

Both stool and breath test are consider very acurate. However, stool test, like HpSA, detect the antigen while breath test detect the broken down of urea. Review of HpSA suggest that it is very sensitive and rarely cross react with other helicobacter species which might be living in the intestine. Breath test is focus on the stomach, so will not detect any other helicobacter species down the intestine.

so you might ask, will other helicobacter species cause problem? the answer is unlikely. So far, these other Helicobacter species only reported causing problem among the immuno compromised people.

In your case, I trust the breath test result. However, there is no harm getting another test a month later to be sure. The accuracy of the test do sometimes rely on who is actually doing the test and the actual data. eg. how negative is your negative breath test and how positive is your positive stool test.

Posts: 17
Joined: Tue Mar 29, 2016 11:08 am

Re: Positive Stool HpSA but Negative UBT??

Post by aspirant » Tue Apr 05, 2016 7:18 am

Ask your doctor to Refer to a gastroenterology doc who will conduct the test and analyse.

According to me if you are found positive on H Pylori antibodies in blood or stool or breath test any one. You should receive the triple therapy. I should not be ignored.


Post Reply

Return to “Hot Topics and Common forum Issues”