74789-9
LaboratoryFructose challenge (hydrogen breath test) panel - Exhaled gas
Definition
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]
LOINC 6-Axis Classification
Component
Fructose challenge panel
Property
-
Time Aspect
Pt
System
Exhl gas
Scale Type
Qn
Method Type
N/A
Details
Class
PANEL.CHAL
Order/Observation
Order
Short Name
Fructose HBT Pnl ExG
Display Name
Fructose challenge (hydrogen breath test) panel (Exhl gas)
Related Names
Frequently Asked Questions
What is LOINC code 74789-9?
LOINC code 74789-9 identifies "Fructose challenge (hydrogen breath test) panel - Exhaled gas". 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]
What does 74789-9 measure?
This code measures Fructose challenge panel in Exhl gas. It belongs to the PANEL.CHAL class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.