Testosterone, Free

The Testosterone, Free (Direct), Serum with Total Test will determine the level of testosterone (free and total) in your blood. Testosterone is a hormone that affects sexual features and development.

Specimen: Serum

Reference Values:

Females 20-39 Years Old: 0.1-2.6 pg/ml
Females 40-59 Years Old:  0.05-2.0 pg/ml
Females: 60-80 Years Old: 0.03-1.6 pg/ml                  
Males: 0-12 Years Old: 0.6-17.5 pg/ml
Males: 13-19 Yeras Old: 13-35 pg/ml
Males 20-39 Years Old: 8.8-27 pg/ml
Males 40-59 Years Old:  7.2-23 pg/ml
Males: 60-80 Years Old: 5.6-19 pg/ml                         

Method: RIA 

Loinc: 2991-8