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HelpTest Code OSMOS Osmolality, Serum
Specimen Required
Container/Tube:
Preferred: Serum gel
Specimen Volume: 0.6 mL
Collection Instructions: Serum gel tubes should be centrifuged within 2 hours of collection.
Useful For
Evaluating acutely ill or comatose patients
Method Name
Freezing Point Depression
Reporting Name
Osmolality, SSpecimen Type
SerumSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated | 48 hours |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
Reference Values
276-306 mOsm/kg
Performing Laboratory
MCHS- MankatoTest Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
83930
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| OSMOS | Osmolality, S | 2692-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| OSMOS | Osmolality, S | 2692-2 |
Day(s) Performed
Monday through Sunday