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Testosterone Total, Bioavailable and Free
MessagePatient Preparation: 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. Immediate Specimen Processing: Centrifuge specimen before transporting to the lab. If drawn using a plain red-top tube, transfer serum to a plastic screw-cap tube prior to transportation. Ambulatory Transport Temperature to Inova Central Lab: AmbientSpecimen Stability: 7 days
Test Code
LAB9400 TSTFB
Alias/See Also
TSTFB
CPT Codes
82040| 84270| 84403
Includes
Includes: Testosterone, Total, MSTestosterone, FreeTestosterone, BioavailableSex Hormone Binding Globulin (SHBG)Albumin Patient Preparation: 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. @BKRCERMSGREFRESH(2302793)@ @BKRCERMSGREFRESH(2302794)@
Instructions
Processing Instructions: Centrifuge specimen before transporting to the lab. If drawn using a plain red-top tube, transfer serum to a plastic screw-cap tube prior totransportation. Preferred Testing Volume: 2.8 mL serumMinimum Testing Volume: 1.3 mL serumTransport Temperature: Ambient Stability: Ambient: 7 daysRefrigerated : 7 daysFrozen: 28 days Causes for Rejection: Gross hemolysisGrossly lipemicPerforming Lab: Quest (Chantilly)
Report Available
4-Days
Clinical Significance
1230170912
Last Updated: May 18, 2026