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Test Code TESTES Testosterone, Plasma

Methodology

Electrochemiluminescence

Performing Laboratory

St. Clair Hospital Laboratory

Specimen Requirements

1 plasma gel tube (2 mL of lithium heparin plasma). Centrifuge blood as soon as possible and send specimen frozen in plastic vial, or send unspun blood to laboratory within 4 hours of draw.

Reference Values

Males
20-49 years:  249-836 ng/dL
>50 years:  193-740 ng/dL
Females
Ovulating:  60-120 ng/dL
Oral contraceptives:  10-28 ng/dL
Postmenopausal:  50-111 ng/dL

Day(s) Test Set Up

Monday through Sunday