Version 2.78

Descriptions

Lactose challenge test is used to detect lactose intolerance. In one version of the test, breath samples were collected just before the challenge and then every 30 minutes for 3 hours. The samples were analyzed for their hydrogen content, and were considered positive for lactose intolerance if the hydrogen level rose from baseline by more than 20 parts per million in any sample. For this study, a positive breath test result was the definitive diagnosis of lactose intolerance. Zoler M. Adult Lactose Intolerance Is Still Hard to Diagnose - Brief Article - Statistical Data Included. Family Pratice News June 1, 2000. Source: Regenstrief Institute

Hydrogen breath test using lactose is performed to diagnose a lactose malabsorption. A pre dose reading of hydrogen levels is collected. The patient is then given a small amount of pure lactose (typically 20 to 25 g), and then required to take readings every 15, 30 or 60 minutes for two to three hours. If the level of hydrogen rises above 20 ppm (parts per million) over the lowest preceding value within the test period, the patient is typically diagnosed as a lactose malabsorber. If the patient produces methane then the parts per million for the methane typically rises 12 ppm over the lowest preceding value to be considered positive. If the patient produces both hydrogen and methane then the values are typically added together and the mean of the numbers is used to determine positive results, usually 15 ppm over the lowest preceding value. However, recent study suggest that testing may not correlate with any actual diagnosis. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Hydrogen breath test

Basic Part Properties

Part Display Name
Lactose challenge panel
Part Type
Component (Describes the core component or analyte measured)
Created On
2007-10-04
Construct for LOINC Short Name
Lactose challenge Pnl

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=LP65534-7

Language Variants Get Info

Tag Language Translation
zh-CN Chinese (China) 乳糖刺激组套
Synonyms: 乳糖刺激组套（组合、医嘱组、套餐、套餐医嘱、医嘱套餐、组合申请、组合项目）;乳糖刺激（刺激耐受试验、刺激耐受、刺激因素）医嘱组;乳糖耐量医嘱组;乳糖耐量试验医嘱组
fr-CA French (Canada) Test de tolérance au lactose panel
es-ES Spanish (Spain) Panel de provocación de lactosa
it-IT Italian (Italy) Lattosio, panel provocazione
Synonyms: Panel provocazione del lattosio
tr-TR Turkish (Turkey) Laktoz girişimi paneli
ru-RU Russian (Russian Federation) Лактоза проба панель
nl-NL Dutch (Netherlands) lactose belasting panel
fr-BE French (Belgium) Test de tolérance au lactose