Stanford Hospital & Clinics and Lucile Packard Children’s Hospital
Test Name : Testosterone, Total, Bioavailable, and Free, with SHBG Order Code : TESFBT
Synonyms: SHBG bound testosterone, albumin bound testosterone
Specimen Type: Serum
Container Type: Red-top tube (Plain) no additive
Required Volume: 3.5 mL
Minimum Volume (Pediatric): 2 mL
Methodology: Total Testosterone by Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS); SHBG by Automated Chemiluminescent Immunometric Assay; Free and Bioavailable Testosterone by calculation
Standard Run Times: Tue-Thu
Turnaround Time: 7 days
Special Handling: Draw blood in a plain, red-top tube. Spin down and send 3.5 mL of serum refrigerated. (Note: Patient's age and sex are required on request form for processing.)
CPT Codes: 84402 x 2 - testosterone, bioavailable and free; 84403 - testosterone, total
Causes For Rejection: Serum or plasma sample collected in gel tube
Department: Special Chemistry
Clinical Specialties: Endocrinology