Testosterone, Total (Direct Access Testing)

Specimen Requirements

1.0 mL Serum in a SST Gold Top Tube 

Alternate Specimen

 1.0 mL Serum from a Red Top Tube in a Plastic Vial 

TransportAndStorage

48 hours Refrigerated

6 hours unspun 

Collection Instructions

 

Minimum Volume

Neonatal Volumne

Reference Range:

Male: 241 - 827 ng/dL
Female: 14 - 76 ng/dL 

Test Comments:

This assay utilizes biotin technology. Patients taking vitamin supplements containing high doses of biotin (>5 mg/day) may have falsely increased test results generated. 

Methodology:

• Electrochemiluminescence (ECLIA)

CDM

01418005

CPT Coding

84403