LOINC long common name : Fructose challenge (hydrogen breath test) panel - Exhaled gas;
LOINC short name : Fructose HBT Pnl ExG;
LOINC description : The hydrogen breath test is based on the fact that the only hydrogen gas source in
humans is intestinal bacteria, which produces hydrogen gas during carbohydrate metabolism.
After the patient ingests a dose of fructose, any carbohydrate that is not absorbed
is metabolized by intestinal bacteria During this process, hydrogen gas is produced,
which is absorbed and eventually exhaled through the lungs; the amount of hydrogen
in the expired gas is measured at various intervals depending on the protocol being
used. The test is used to detect fructose malabsorption, irritable bowel syndrome
and small intestine bacterial overgrowth.[PMID: 16474100];
Has component