Helicobacter pylori – Serology

Detection of antibodies to Helicobacter pylori
Microbiology
Serology
○ Serum
Other Information
○ Serologic testing of asymptomatic individuals is rarely indicated because of the low predictive value of the test in this population (exceptions include family members of patients diagnosed with gastric cancer).
○ The H. pylori IgG antibody test cannot reliably determine eradication. Serological follow-up testing of individuals with positive H. pylori serology is not advised.
○ Serum separator tube (clotted blood)
○ Decontaminate skin with 70% alcohol followed by iodine or chlorhexidine, collect at least 5 mL of blood.
Refer to section Sample Processing / Delivery
PHOL
○ Up to 7 days
416-586-4800 extension 4511
NO
○ Label specimen container. Place specimens in biohazard bag and seal.

○ Specimens should be stored and transported to the UHN/SH Microbiology Laboratory at refrigeration temperature (2-8˚C) after collection.