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Testosterone Free and Total *

SIM

20051 

CPT

84403; 84402 

Synonyms

Free Testosterone and Total; Testosterone, Free (Direct) with Total; F&T Testosterone 

Specimen Type

Serum 

Container

Red-top or gold-top tube

Collection Instructions

Volume

Volume: 2 ml. 
Minimum volume: 0.7 ml 

Additional Information

Evaluates hirsutism and masculinisation in women; evaluate testicular function in clinical state where the testosterone binding proteins may be altered.

Patient Preparation

Specimen Processing Instructions

 Once in the lab, separate serum from cells if using a red-top tube

Transport Requirements

Room Temperature

Specimen Stability

Room Temperature or Refrigerated: 14 days 

Rejection Criteria

Gross lipemia; plasma specimen; recently administered isotopes

Reference Range

Reference Range accompanies report

Critical Value

 

Test Includes

Total testosterone and free testosterone 

Methodology

Free: Direct analog enzyme immunoassay (EIA)

Total: Electrochemiluminescence immunoassay (ECLIA) 

Testing Frequency

 

LCA

140103 

Reviewed By

Lisa McBride                   

Reviewed Date

2/20/2018 

Supplemental

* Denotes Reference Lab Test

Reviewed by Lisa McBride on February 20, 2018

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