|Mnemonic: ||[Test F F/T]|
|Name: ||Testosterone, Total & Free, Females or Children|
|Specimen: ||1 mL serum from a Red SST or Red top tube, or plasma from a Green PST. Recommendation: Collect specimen between 6-10 AM.|
EDTA plasma is unacceptable.
|Minimum Spec: ||0.8 mL|
|Transport Temp: ||Refrigerated|
|Spec Stability: ||Stable 7 days refrigerated.|
|Ref Lab/Code: ||ARUP 0081056|
| Method: ||HPLC/TMS/EC Immunoassay|
|Note: ||This test is recommended for women and children (<19 years) due to an improved sensitivity of testosterone by LC-MS/MS. |
Includes: Free & Total Testosterone as well as Sex Hormone Binding Globulin. The concentration of Free Testosterone is derived from a mathematical expression based on constants for the binding of Testosterone to Sex Hormone Binding Globulin.