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Osmolality, Fecal

CPT Code(s): 84999
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 (RDL Supply #40910). Available online through eSupply using RDL Connect™ or contact RDL Client Services at (888) 431-7474. (Min: 0.5 mL)
Storage/Transport Temperature:CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Stability:Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month
New York DOH Approval Status: This test is New York DOH approved.
Aliases:
  • Fecal OsmolalityOsmolal gaposmolality, fecesOsmotic gapstool osmotic gap
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