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Testosterone, Total, Free, Bioavailable

Testosterone, Total, Free, Bioavailable

Alternate Test Name

Testosterone, Total, Bioavailable, and Free, Serum

Epic Mnemonic
Sunquest Mnemonic

LAB839
TTFBSB

Category

Sendouts

Methodology

FRTST: Equilibrium Dialysis
TTST: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
BATS: Differential Precipitation

Test Performance Schedule

Monday - Saturday

Result Availability

2 – 4 days

Specimen Required

Container

Red top (serum) tube

Volume

Pref. Vol.: 3.5 mL serum
Min. Vol.: 2.0 mL serum

Collection Instructions


• Routine venipuncture
• Clot 30 minutes
• Promptly centrifuge 15 minutes
• Immediately transfer serum to separate plastic tube
• Refrigerate

Transportation Instructions

Refrigerated

Stability

• Room temperature: Unacceptable
• Refrigerated (preferred): 14 days
• Frozen: 60 days

Causes for Rejection

• Grossly hemolyzed, lipemic, or icteric specimens
• Serum gel tubes

Remarks

Patient age and sex required

Test Includes:
• Free Testosterone
• Total Testosterone
• Bioavailable Testosterone

CPT Codes

84402, 84403, 84410

Effective/Revised

11/20/2019

Continue Watching

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Trending on Lakeland

Corewell Health Center for Wellness Has Relocated to Expand Local Health Services in Benton Harbor

The Corewell Health™ Center for Wellness has moved to a spacious new building around the corner from its original facility. The new space is approximately 24,000 square feet - nearly 20 times larger than the previous location, adding adequate room to expand community-based health services.

Corewell Health’s President in Southwest Michigan Announces Retirement

Loren B. Hamel, M.D., president, Corewell Health™ in Southwest Michigan, has announced his plan to retire on June 30, 2024.

New Members Appointed to Corewell Health South Board of Directors

Corewell Health welcomed two new members to its board of directors in Southwest Michigan. Bertha King and Stephen Hempel, M.D., began three-year terms on Jan. 1, 2024.

Corewell Health Announces Changes to Board of Directors, Appoints New Chair

Today, Corewell Health™ announced changes to its board of directors, including the introduction of two new members, the appointment of a new chair and vice chair, and the departure of three founding board members.

Corewell Health Encourages Community Members to Donate Blood, Save Lives This Holiday Season

Corewell Health™, in partnership with Versiti Blood Center of Michigan, is encouraging Lakeland area community members to donate blood this holiday season. A series of community blood drives will take place this December.

Corewell Health, YMCA Increase Access to Healthy Foods Through Veggie Van™ Partnership

The Veggie Van™, a mobile farmers market, served 13 counties throughout Michigan this year, ensuring that free fruits and vegetables were available to individuals who otherwise had limited access. The program, a joint effort of Corewell Health™ and the YMCA of Greater Grand Rapids, launched in 2018 to combat food insecurity and will continue for a sixth consecutive year in spring 2024. Through their partnership, 46,466 free pieces of produce were distributed to Michigan families in 2023.

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Board-certified endocrinologist, Inderpreet Madahar, M.D., will join Corewell Health’s medical staff in Southwest Michigan. Dr. Madahar will see patients at Corewell Health Diabetes and Endocrinology – Royalton, 3950 Hollywood Road, Suite 288, St. Joseph.

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Corewell Health Named a 2023 Top 75 Company for Executive Women

Corewell Health was named among the list of 2023 Seramount Top 75 Companies for Executive Women.

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