Testosterone, Free (Direct) with Total Testosterone,LC/MS-MS
Test Code: 070195
Performing Lab: LabCorp
CPT Code: 84402 001 84403 001
Specimen Type
Serum
Specimen Container
Red-top tube or gel-barrier tube
Volume
2 mL
Minimum Volume
1.3 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
Gross lipemia (may yield erroneously high free testosterone results); plasma specimen; gross hemolysis and/or gross icterus cause for rejection of direct free testosterone; improper labeling
Temperature
Room temperature
Methodology
Free: Direct analog enzyme immunoassay (EIA) Total: Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Stability
Room Temperature: 14 days
Refrigerated: 14 days
Frozen: 14 days
Refrigerated: 14 days
Frozen: 14 days
| Result Code | Result Name | LOINC |
|---|---|---|
| 070036 | Testosterone, Total, LC/MS | 2986-8 |
| 144981 | Free Testosterone(Direct) | 2991-8 |
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