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Osmolality (OSM)

Department: Chemistry
Test Synonym(s): LAB107, OSM, Osmolality Blood
CPT Codes: 83930
Methodology: Freeze Point
Reference Range: 285 - 295 mOsm/kg H20
Tube Type: Red top tube (no gel)
Specimen: Serum
Pediatric Requirements: 1 red top microtainer
Volume: 1 mL serum
Minimum Volume: 1 red top
Stability: Room temperature: 30 minutes; Refrigerated: 1 day; Frozen: Indefinite
Days Performed: Daily
Times Performed: Continuous


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