Test Code OSMO OSMOLALITY, SERUM

Performing Location

Southwestern Vermont Medical Center

Collection Instructions

Refer to Venipuncture Protocol

Collection Container

Gold top or Marble Red top vacutainer

Specimen Required/Volume

3.0 mL

Specimen Type

serum

Turn-Around Guidelines

Daily upon arrival

Reference Values

280-300 mOsm/kg

Method

ADVANCED 3320-Freezing Point Depression

CPT

83930

LOINC

2692-2