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Testosterone,Free and Total

Message
State patient's age and sex on the request form.


Test Code
140103


Alias/See Also
Free Testosterone (Direct) and Total, Serum; Testosterone, Free/Tot/Direct


CPT Codes
84402, 84403

Preferred Specimen
Serum


Minimum Volume
0.7 mL (NOTE:This volume does NOT allow for repeat testing.)


Instructions
If a red-top tube is used, transfer separated serum to a plastic transport tube.


Transport Container
Red-top tube or gel-barrier tube


Transport Temperature
Refrigerate


Specimen Stability
14 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross lipemia (may yield erroneously high free testosterone results); plasma specimen; recently administered isotopes


Methodology
Free: direct analog/radioimmunoassay (RIA); Total: Electrochemiluminescence Immunoassay (ECLIA)



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.