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Stool Analysis

Item Value
Approval req'd? No
Available Stat? No
Test code STAN
Performed by Parnassus Hematology
In House Availability Set up daily, day and evening shifts
Collection Instructions Must be received in laboratory within 3 hours of collection.
Container type Clean container
Amount to Collect See preferred volume
Sample type Fresh stool
Preferred volume 10 gm
UCSF Rejection Criteria Delivered to lab > 3 hours after collection
Processing notes Contains test codes: PHF, RSST
Normal range
pH > 6.5
Reducing substances negative
Synonyms stool pH; reducing substances
Stability Room temperature 3 hours
Turn around times 4 hours
Additional information Includes, pH, reducing substances. Individual assays orderable separately.

Disaccharide malabsorption results in acidification of the stool from the production of short chain fatty acids by colonic flora if antibiotics do not interfere, typically giving a pH < 5.5.
Last Updated 6/19/2013 1:20:35 PM
Entry Number 873
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