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Index:

Testosterone, Free and Total by Equilibrium Dialysis, Adult Male

Order Name TEST FT M
Test Number: 3608125
Revision Date 03/15/2019
Test Name Methodology LOINC Code
Testosterone Total, Males (Adult)
Quantitative Equilibrium Dialysis/HPLC-Tandem Mass Spec. 2986-8 
Testosterone Free, Males (Adult)
Quantitative Equilibrium Dialysis/HPLC-Tandem Mass Spec. 2991-8 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (1 mL) Serum Clot Activator SST Refrigerated
Alternate 1 1 mL (1 mL) Serum Clot Activator (Red Top, No-Gel) Refrigerated
Alternate 2 1 mL (1 mL) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Alternate 3 1 mL (1 mL) Plasma Sodium Heparin (Green Top, No-Gel) Refrigerated
Instructions For use on Adult Males Only.
Not Recommended for Females and Children under 18 years of age.


Preferred for collection collected between 6-10 a.m.
Separate serum or plasma from cells ASAP or within 2 hours of collection.
Specimen Stability After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 6 months
GENERAL INFORMATION
Testing Schedule Sun, Wed-Sat 
Expected TAT 2-6 Days  
Clinical Use For Females and Children under 18 years use both of the following test codes:

Testosterone Total by LCMS [3602651]
Testosterone Free and Total with SHBG by LCMS [3602546
Notes Reference Lab: ARUP
Test Code: 2004246
Click Here to view information on the ARUP website.
CPT Code(s) 84402; 84403
Lab Section Reference Lab