Test Code MISC1WARDEFRS Reducing Substances - Fecal
Department
SEND OUTS
Reference Lab Test Number
FRS
Collection Requirements
Collect fresh stool in a plastic, leak-proof container. Adult and older children patients can collect the specimen by passing feces into plastic wrap stretched loosely over the toilet bowl. Then transfer 10 g of the stool specimen into the plastic container. With young children and infants wearing diapers, the diaper should be lined with clean plastic wrap to prevent absorption. A pediatric urine bag can be attached to the child to ensure that the stool specimen is not contaminated with urine. Then transfer 10 g of the stool specimen from the plastic lined diaper to the plastic container. Do not submit the diaper itself. Freeze and transport frozen.
Refer To
Primary Collection Container
Sterile Container
Transport
Stool frozen
Preferred Transport Temperature
Frozen
Processing
Send 10.0 g stool (3.0 g minimum) frozen in a plastic screw-capped stool container.
Stability
Ambient: 4 hours
Refrigerated: 24 hours
Frozen: 60 days
Minimum Testing Volume
3 grams
Reference Range
Negative
Methodology
Benedict’s Solution
Performed
Monday – Friday
Reported
5-7 days
CPT Codes
-84376
Unacceptable Conditions
Stool in diaper.