ARUP's Laboratory Test Directory
| 0020046: Osmolality, Serum or Plasma |
| Test Mnemonic: OSMO | |
|
Methodology: Freezing Point
Performed: Sun-Sat Reported: Within 24 hours |
| Specimen Required: | |
|
Collect: One 4 mL SST or PST.
Transport: 0.5 mL serum or plasma at 2-8°C. (Min: 0.5 mL) Submit specimen in an ARUP Standard Transport Tube. Pediatric Collection/Transport: 0.5 mL serum or plasma at 2-8°C. Remarks: Separate serum or plasma from cells ASAP. Stability: After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 6 months |
|
| Reference Interval: |
|
0-16 years: 271-296 mOsm/kg 17 years and older: 280-303 mOsm/kg |
| CPT Code(s): | |
| 83930 |