Ordering Recommendation

New York DOH Approval Status

This test is New York state approved.

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

Frozen

Unacceptable Conditions

Formed stool. Specimens in media or preservatives.

Remarks
Stability

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



Compliance Category

Standard

Note

Hotline History

N/A

CPT Codes

84999

Components

Component Test Code* Component Chart Name LOINC
0098122 Osmolality Fecal 2693-0
* 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
Osmolality, Fecal