What is Helicobacter pylori Ag by EIA?
Isabella Ramos
Updated on March 01, 2026
Helicobacter pylori (H. pylori) bacteria are a common cause of peptic ulcers (sores in the lining of the stomach, small intestine, or esophagus). In this test, a stool (feces) sample is used to determine if H. pylori antigens are present in your child’s gastrointestinal (GI) system.
Which H. pylori diagnostic method is the gold standard?
Use of Urea breath test (UBT) is often considered as the gold standard test in the diagnosis of H. pylori infection[114-116].
What is the most sensitive and specific test for H. pylori infection?
Among the indirect tests, UBT is one of the most accurate to determine H. pylori infection with a sensitivity and specificity of 99% and 98%, respectively [5]. Together with SAT, UBT became the best method to identify active infection, which cannot be detected by serology [6].
What is the normal range of Helicobacter pylori?
Blood test (normal findings) ≤30 U/mL: Negative. 30.01-39.99 U/mL: Equivocal. ≥40 U/mL: Positive.
What is the best cure for H. pylori?
To date, the bismuth-based triple therapies are the most effective and least costly treatments for the eradication of H pylori, because they have high cure rates even in those patients infected with metronidazole-resistant strains.
How do you test for Helicobacter pylori infection?
There are different ways to test for an H. pylori infection. They include blood, stool, and breath tests. If you are having digestive symptoms, testing and treatment may help prevent serious complications. Other names: H. pylori stool antigen, H. pylori breath tests, urea breath test, rapid urease test (RUT) for H. pylori, H. pylori culture
Is Helicobacter pylori associated with gastric cancer?
Suspected Helicobacter pylori associated gastric cancer – Helicobacter pylori antibody titers are associated with the development of gastric cancer. Suspected Helicobacter pylori gastritis – a drop in antibody levels of 20% to 50% from baseline is suggestive of cure.
What is the normal range of Helicobacter pylori IgM?
Lab Test: Helicobacter Pylori Antibody 1 IgM: 2 ≤30 U/mL (negative). 3 30.01-39.99 U/mL (equivocal). 4 ≥40 U/mL (positive).
How accurate is the HPSA test for the diagnosis of hpylori infection?
The sensitivity of the CLO test was 87.8%, and specificity 92.5%, while PPV of the CLO test was 93.5% and NPV was 86.2%. Conclusion: The HpSA test is a useful and reliable test for the diagnosis of H.pylori infection. It is non-invasive, relatively cheap and convenient for the patient.