H. pylori IgG
Helicobacter pylori serology
Gold or Red tube
Negative, Equivocal, or Reactive.
Stool antigen detection is more accurate and is now the standard test for Helicobacter status, used by most doctors in the Waikato and Bay of Plenty regions. http://www.bpac.org.nz/BT/2014/May/h-pylori.aspx