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

Should you have any problem in posting, registering, or login, please do not hesitate to contact the admin at Marshall.centre(at)gmail(dot)com. In the subject, please use "Help needed for"

Advertisement is not allowed. While we encourage discussion, please try not to promote your website, goods, or unproven treatment here.

This is a non-profit website. We will try our best to help anyone that has question about H. pylori and their treatment. We shall provide the most accurate answer about H. pylori. You can help us by clicking here to keep this forum alive.

Some useful guides
How to post in the forum?
Management of Helicobacter pylori infection—the Maastricht V/Florence Consensus Report
The 5th Chinese Helicobacter treatment consensus
How long should I wait before doing follow up breath/stool test?

If you are confirmed with H. pylori, in your convenient time, please help us with the symptoms survey that you are experiencing.
Symptoms survey
(contributed by frostyfeet)

若有困难注册,请联络站长 Marshall.centre(at)gmail(dot)com。标题请用 "Help needed for"

欧洲幽门螺杆菌治疗共识 5

Any advise regarding my blood test?

Blood tests (for antibody) are used to screen for H.pylori. They remain positive for many months after treatment so can only be used as the initial test. Urine antibody is a "pregnanacy style" urine test. Accuracy is slightly less than blood tests. A negative blood test is good evidence that Hp is NOT present. Use it to exclude the diagnosis (but no test is 100% perfect remember).

Moderators: Toni, barjammar

Post Reply
Posts: 1
Joined: Fri Sep 18, 2020 6:47 am

Any advise regarding my blood test?

Post by mr_zombie »

Couple years ago I suspected h pylori infection and did stool, breath and blood tests. All came back negative. So I left that idea, but my sympthoms did not get better since that time.
Recently I found expanded blood panel with various h pylori specific antigens at some lab and decided to test.
All came back negative, except Ureb P66 antigen (elevated IGG and IGA) and HSP p57 (suspected elevated IGG).
Any ideas what that means and should I consider h pylori infection? I did not have much success googling these antigens.

Description of the antigens from the lab's website:
Ureb P66 - heavy subunit of urease, causes cross-reactivity with other bacteria containing urease
HSP p57 - heat shock protein homologue, nonspecific

Site Admin
Posts: 3876
Joined: Wed Mar 02, 2011 7:20 am

Re: Any advise regarding my blood test?

Post by Helico_expert »

stool test, breath test and blood test, each of them has accuracy of 90%.
If you have negative results from all of them, then your false negative rate is pretty low, especially for blood test.

Your latest specific antigen test suggest that you have antibody for 2 proteins out of thousands.. probably mean that you had exposure to them previously. Perhaps H. pylori tried to colonise in your body but failed. Perhaps your immune system is good and prevented their colonisation via targeting these two proteins.

Post Reply

Return to “Antibody type Tests (blood or urine antibody)”