• Detects an abnormal testosterone level in males and females;
  • in males, to help diagnose the cause of erectile dysfunction or the inability of your partner to get pregnant (infertility);
  • in females, to help diagnose the cause of masculine physical features (virilization), infertility, or polycystic ovary syndrome (PCOS);
  • in children, to help determine the cause of genitals that are not clearly male or female (ambiguous genitalia) or delayed or early puberty

Gold serum separator (SST) tube

Immediately following collection, mix sample by gently inverting 5 times

1. Allow sample to clot for a minimum of 30 minutes
2. Spin within 45 minutes of sample collection
3. Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp) , labelled as serum
4. Freeze

Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)

Red serum vial/tube, 5 mL

1. Allow sample to clot
2. Spin within 45 minutes of sample collection
3. Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp) , labelled as serum
4. Freeze

Frozen (preferred)

Ambient - 2 days

Refrigerated - 7 days

Bioavailable testosterone: Ammonium sulfate precipitation

Total testosterone: High Performance Liquid Chromatography with Tandem Mass Spectrometry (HPLC-MS/MS)

An interpretive report will be provided