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Test Name

Testosterone, Total, Males (Adult), Immunoassay

To view specimen requirements and codes please Select a regional laboratory.

Not sure which laboratory serves your office? Call us 866-MYQUEST (866-697-8378)

CPT Code(s)**

84403
**IMPORTANT: CPT Code is informational only; obtain the Test Code for ordering.

Methodology

Immunoassay (IA)

Limitations

Immunoassay does not provide sufficient sensitivity in detecting low concentrations among non-adults and women.

Reference Range(s)

Adult Male 250-827 ng/dL

All test requests for Testosterone on female and pediatric (<18 years) patients must use test code 15983 - Testosterone, Total, LC/MS/MS.

Clinical Significance

Testosterone circulates almost entirely bound to transport proteins: Normally less than 1-2% is free. The principal transport protein for testosterone is known as sex hormone binding globulin (SHBG) or testosterone-estradiol binding globulin (TeBG). Testosterone measurements are used to assess erectile dysfunction, infertility, gynecomastia, and osteoporosis and to assess hormone replacement therapy.

Test FAQ

Biotin: Interference with Laboratory Assays
Testosterone Testing

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided 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 payer being billed.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.

873
873
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29868W
635Q
29868W
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19958
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19958
873
Testosterone, Total, Males (Adult), Immunoassay
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