Osmolality Serum/Plasma
					Order Name
					
						OSMO 
					
					
Test Number: 2004300
Revision Date 01/23/2013
				
			Test Number: 2004300
Revision Date 01/23/2013
| Test Name | Methodology | LOINC Code | 
|---|---|---|
| 
								
									Osmolality Serum/Plasma
									
								 | 
							
								Freezing Point | 2692-2 | 
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment | 
| Preferred | 1 mL (0.5) | Plasma | Lithium Heparin PST (Light Green Top) | Refrigerated | 
| Alternate 1 | 1 mL (0.5) | Serum | Clot Activator SST | Refrigerated | 
| Instructions | Specimen stability: Ambient 8 hours. Refrigerated 7 days. Frozen 4 weeks. | |||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Daily | 
| Expected TAT | 1-2 days | 
| Clinical Use | Used in the investigation of hyponatremia and potential poisoning. | 
| CPT Code(s) | 83930 | 
| Lab Section | Chemistry |