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Test Code OSMO Osmolality, Serum

EPIC Code

LAB107

Methodology

Freezing Point Depression

Performing Laboratory

Berkeley Medical Center

Specimen Requirements

Collect: One gold top tube (SST) 

Pediatric: One gold top microtainer

Stability: Unstable, centrifuge within two hours of collection

   Ambient: 24 hours

   Refrigerated: 7 days

   Frozen: 7 days

Alternate Specimen: Red top tube

Reference Values

275-295 mOsm/kg

Day(s) Test Set Up

Sunday-Saturday

Test Classification and CPT Coding

83930