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Osmolality, Fecal
0098122
Ordering Recommendation
Mnemonic
FEC OSMO
Methodology
Quantitative Freezing Point
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Liquid stool. 
Specimen Preparation
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) 
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered. 
Unacceptable Conditions
Formed stool.  Specimens in media or preservatives. 
Remarks
 
Stability
Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month 
Reference Interval
0-16 years: 271-296 mOsm/kg
17 years and older: 280-303 mOsm/kg
Interpretive Data


Note
CPT Code(s)
84999
Components
Component Test Code*Component Chart NameLOINC
0098122Osmolality Fecal2693-0
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Fecal Osmolality
  • Osmolal gap
  • osmolality, feces
  • Osmotic gap
  • stool osmotic gap