Sign In
Labcorp Oklahoma, Inc.
Test Directory


Index:

Testosterone, Total and Free

Order Name TGRP
Revision Date 10/23/2019
Test Name Methodology LOINC Code
Testosterone, Total and Free
 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 2.5 mL (1.0 mL) Serum Red Top Refrigerated
Instructions Label specimen with Mobilab label or with patient name (first and last), date of birth, date and time of collection, collector initials, and test(s) being ordered.
Reference Range An interpretive report will be provided.
Methodology FRTST (Free Testosterone): Equilibrium Dialysis
TTST (Total Testosterone): Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
GENERAL INFORMATION
Testing Schedule Monday-Friday 2 p.m.; Saturday and Sunday-Varies 
Expected TAT 4 Days  
Notes Specimen Stability:
Refrigerated (preferred) - 14 Days
Frozen - 60 Days
CPT Code(s) 84402
84403
Lab Section NRLS-Mayo Medical Laboratories