I like the approach that Jreboll suggests, which I find the most accurate -- based on my experience below.
I was told to get a specific H. Pylori test from a late doctor here about 2 years ago. I ordered the balloon at Go Lab and took a pill there prior to blowing into the balloon. The results came back negative. Cost for that test was 2,000p -- not cheap.
However, about 4 months later I had a general endoscopy and he took about 3 biopsys. That was done by Dr. Daniel Briseno who I think is excellent, at San Antionio hospital.That total cost came to about 13,000 p.
The biopsy came back positive for H. Pylori. I told him about the balloon test, and he asked did the doctor tell you to stay off Omeprazole for two weeks before you test, and I said, No. He said that is why you got a false reading from the balloon test. He prescribed a packet of drugs -- which were expensive.
So, I went to Dra Justina Lopez at 376- 766-5563 and she prescribed the series of antibiotics for both me wife and me. She said no need for her to take a test, because if you have it, then she most likely has it. She was absolutely right. We both took her series of prescribed meds and it went away !
I recommend you meet with Dra Justina who will put you also on a much less expensive doses of necessary generic antibiotics ! That should save you a lot of time and money. Just tell her your symptoms -- no tests.