Testosterone, Free, Bioavailable and Total, MS

Testosterone, Free, Bioavailable and Total, MS

Test Code

14966
82040, 84270, 84403
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
14966
82040, 84270, 84403
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection may be available in your area for purchase through Quest Mobile.

Clinical Significance

Testosterone, Free, Bioavailable and Total, MS - Helpful in assessing testicular function in males and managing hirsutism, virilization in females.

Test Resources

Test FAQ

Hypogonadism

Test FAQ

STRENSIQ® (Asfotase Alfa) Assay Interference

Test FAQ

Testosterone Testing

Clinical Focus

Hypogonadism and Low Testosterone in Men: Laboratory Support of Diagnosis and Management

Clinical Focus

Polycystic Ovary Syndrome (PCOS)

Test Details

Includes

  • Testosterone, Total, MS
  • Testosterone, Free
  • Testosterone, Bioavailable
  • Sex Hormone Binding Globulin (SHBG)
  • Albumin

Methodology

Chromatography/Mass Spectrometry • Calculation (CALC) • Spectrophotometry (SP) • Immunochemiluminescent Assay

Assay Category

This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Reference Range(s)

See Laboratory Report

Alternative Name(s)

Bioavailable Testosterone,Testosterone, Free & Weakly Bound

LOINC® Codes, Performing Laboratory

Service Area must be determined
Testosterone, Total, MS
Testosterone, Free
Testosterone, Bioavailable
Sex Hormone Binding Globulin (SHBG)
Albumin

Methodology

Chromatography/Mass Spectrometry • Calculation (CALC) • Spectrophotometry (SP) • Immunochemiluminescent Assay
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Reference Range(s)

See Laboratory Report

Alternative Name(s)

Bioavailable Testosterone,Testosterone, Free & Weakly Bound
Service Area must be determined

Preferred Specimen(s)

2.8 mL serum

Minimum Volume

1.3 mL

Collection Instructions

Specify age and sex on test request form.

Red-top tube (no gel): Allow blood to clot at room temperature. Centrifuge to separate the serum from the cells and immediately pour serum into a plastic transport tube.
Serum separator tube: Allow blood to clot at room temperature, centrifuge, and remove serum from the gel immediately (not to exceed 48 hours) by pouring serum into a plastic transport tube.

Administration of STRENSIQ may interfere in certain assays and may falsely elevate values. For patients receiving STRENSIQ, consideration should be given to using alternate methods.

Transport Container

Transport tube

Transport Temperature

Room temperature

Specimen Stability

  • Room temperature: 7 days
    Refrigerated: 7 days
    Frozen: 28 days

Reject Criteria

Gross hemolysis • Grossly lipemic

Setup Schedule

Service Area must be determined
2.8 mL serum
1.3 mL
Specify age and sex on test request form.

Red-top tube (no gel): Allow blood to clot at room temperature. Centrifuge to separate the serum from the cells and immediately pour serum into a plastic transport tube.
Serum separator tube: Allow blood to clot at room temperature, centrifuge, and remove serum from the gel immediately (not to exceed 48 hours) by pouring serum into a plastic transport tube.

Administration of STRENSIQ may interfere in certain assays and may falsely elevate values. For patients receiving STRENSIQ, consideration should be given to using alternate methods.
Transport tube
Room temperature
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Gross hemolysis • Grossly lipemic
Service Area must be determined
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection may be available in your area for purchase through Quest Mobile.
Test Details

Clinical Significance

Test Resources

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 guidance 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.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.

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