Testosterone, Free, Equilibrium Ultrafiltration with TotalTestosterone, LC/MS-MS
Test Code: 070038
Performing Lab: LabCorp
CPT Code: 84402 001 84403 001
Specimen Type
Serum
Specimen Container
Red-top tube or gel-barrier tube
Volume
2.2 mL
Minimum Volume
1.8 mL (NOTE:This volume does NOT allow for repeat testing.)
Specimen Handling
Serum should be transferred from cells within one hour of collection and transferred to a plastic transport tube.
Unacceptable Conditions
Hemolyzed sample; icteric sample; gross lipemia; recently adminisered isotopes; plasma specimen
Temperature
Room temperature
Methodology
Free: equilibrium ultrafiltration; Total: liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Stability
Room Temperature: 7 days
Refrigerated: 7 days
Frozen: 5.58 years
Refrigerated: 7 days
Frozen: 5.58 years
| Result Code | Result Name | LOINC |
|---|---|---|
| 070036 | Testosterone, Total, LC/MS | 2986-8 |
| 070039 | Testosterone, Free | 2991-8 |
| 080770 | % Free Testosterone | 15432-8 |
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