OSMOLALITY, feces (087-0672)
CPT 4 Code: 83935
Test Order Mnemonic: OSMO FECES
Lab: Clinical Chemistry
Request Form: Routine Chemistry
Collection: Random
Storage Instructions: Refrigerate at 2-8C.
Causes for Rejection: Improperly labeled specimen.
Availability: Samples are received 24 hours per day
at Sample Management, 5.136 McCullough.
Turnaround Time: Routine: 4 hours (7:00 AM - 11:00
PM); STAT: 1 hour
Specimen: Feces
Volume: 10 mL or 10 gms
Minimum Volume: 5 mL or 5 gms
Container: Plastic container with tight-fitting lid
Reference Ranges: Newborn - Adult: 336-423 mOsm/kg
