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Test Code SQ OSMO, EPIC LAB107 Osmolality, Plasma or Serum

Methodology

Freezing Point Depression

Performing Laboratory

Meriter Laboratories

Specimen Requirements

Submit only 1 of the following specimens:

 

Specimen Type: Plasma

Container/Tube: Light-green top (lithium heparin gel)

Specimen Volume: 1 mL

Collection Instructions:

1. Avoid hemolysis

2. Label specimen as plasma.

 

Specimen Type: Serum

Container/Tube: Serum gel

Specimen Volume: 1 mL

Collection Instructions:

1. Avoid hemolysis

2. Label specimen as serum.

Specimen Transport Temperature

Refrigerated

Reference Values

278-305 mOsm/kg
Critical values (automatic call-back): ≤240 mOsm/kg or ≥340 mOsm/kg

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

83930