lactose tolerance test


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Related to lactose tolerance test: lactose intolerance

lactose tolerance test

A clinical test for lactase deficiency in which 100 g of lactose, a disaccharide of glucose and galactose, is administered orally and serum glucose is monitored, as in the glucose tolerance test. Lactose intolerance is presumed to exist if the glucose levels rise less than 20 mg/dL; extreme lactase deficiency is evident by osmotic diarrhoea.

lactose tolerance test

A test for lactase deficiency, based on oral loading of lactose. See Lactose, Lactose intolerance. Cf Glucose tolerance test.
References in periodicals archive ?
Indirect conventional testing using either the hydrogen breath test or lactose tolerance test has limitations.
A lactose tolerance test is the best way to diagnose the condition.
Manual tests that mass spec-based breath analyzers are replacing or competing with include carbon-14 glycine cholate tests for bacterial overgrowth, carbon-14 lactose breath tests, carbon-14 stool excretion intestinal biopsies, intestinal intubations for culture intestinal perfusion, lactose barium radiography lactose tolerance tests, and stool pH tests for fecal reducing substances.