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FRS / FRS-MC
FECAL REDUCING SUBSTANCES

Test Code FRS / FRS-MC 
Test FECAL REDUCING SUBSTANCES 
Methodology BENEDICT'S SOLUTION 
Description The presence of reducing substances is useful in the diagnosis of abnormalities in carbohydrate metabolism, i.e., sucrose and lactase. The unabsorbed sugars in stool are measured as reducing substances. 
Specimen 10.0 g stool (3.0 g minimum) collected in a leak-proof container 
Reference Values NEGATIVE 
Analytic Time 4-6 DAYS (once received at performing laboratory) 
Day(s) Test Set Up Monday - Friday 
CPT Code(s) 84376