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HelpTest ID UOSMS Osmolality, Serum
Useful For
Evaluating acutely ill or comatose patients
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumSpecimen Required
Collection Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 2 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 7 days |
| Frozen | 7 days | |
| Ambient | 24 hours |
Reference Values
275-295 mOsm/kg
CPT Code Information
83930
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
Forms
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.
Secondary ID
614057Day(s) Performed
Monday through Sunday