Osmolality, Fecal
Ordering Recommendation
New York DOH Approval Status
Specimen Required
Liquid stool.
Do not add saline or water to liquefy sample. Transfer 5 mL liquid stool to an unpreserved stool transport vial (ARUP Supply #40910). Available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787. (Min: 0.5 mL)
Frozen
Formed stool. Specimens in media or preservatives.
Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 1 month
Methodology
Quantitative Freezing Point
Performed
Sun-Sat
Reported
1-2 days
Reference Interval
0-16 years: 271-296 mOsm/kg
17 years and older: 280-303 mOsm/kg
Interpretive Data
Standard
Note
Hotline History
CPT Codes
84999
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0098122 | Osmolality Fecal | 2693-0 |
Aliases
- osmolality, feces
- Fecal Osmolality
- Osmolal gap
- Osmotic gap
- stool osmotic gap