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Labcorp Oklahoma, Inc.
Test Directory


Index:

Testosterone Free, Total and Bioavailable w/SHBG, Adult Male

Order Name TEST FTSBM
Test Number: 3602547
Revision Date 06/04/2021
Test Name Methodology LOINC Code
Testosterone Total, Adult Male
Chemiluminescence Assay 2986-8 
Testosterone Free (Males)
Calculation  
Sex Hormone Binding Globulin
Chemiluminescence Assay 13967-5 
Testosterone Biovailable Male
Calculation  
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.5 mL) Serum Clot Activator SST Refrigerated
Alternate 1 1 mL (0.5 mL) Serum Clot Activator (Red Top, No-Gel) Refrigerated
Instructions Not Recommended for Females and Children 13 years and under

Preferred to separate serum from cells ASAP or within 2 hours of collection.
Stability: Ambient 8 hrs. Refrigerated 7 days. Frozen 3 months.
GENERAL INFORMATION
Testing Schedule Mon-Fri 
Expected TAT 1-2 Days  
Notes For Females and Children 13 years and under use the following test code:
Testosterone Free and Total with SHBG by LCMS [3602546]
CPT Code(s) 84403, 84270
Lab Section Chemistry