Osmolality, Stool




Test Mnemonic

SOSM

CPT Codes

  • 84999 - QTY (1)

LOINC ®

2693-0

Performing Laboratory

ARUP


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
5 mLStoolClean container Frozen, CriticalDo not add saline or water to liquefy specimen. Separate specimens must be submitted when multiple tests are ordered.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.5 mL     

Stability

Environmental Condition Description
Frozen1 month
RefrigeratedUnacceptable
AmbientUnacceptable

Days Performed

Sun - Sat

Turnaround Time

2 - 3 days

Methodology

Name Description
Freezing Point Depression 

Reference Range

Osmolality, Stool
Sex Age From Age To Type Range Range Unit
   Years16 YearsNormal271 - 296mOsm/kg
 17 Years99 YearsNormal280 - 303mOsm/kg

Special Info

Formed stool specimens will be rejected.

Clinical Info

Evaluation of electrolyte balance