Testosterone Free MS/Dialysis

REF MISC

Performing Lab:

Referral Laboratory

Container Type:

Red top tube or gel-barrier tube

Specimen Type:

Serum **Test available for Dr. Hamburg Only**

Preferred Volume:

2 mL

Minimum Volume:

1 mL

Collection Procedure:

Serum must be separated from cells within 45 minutes of venipuncture. Send serum in a screw-cap plastic transport tube.

Store and Transport:

Frozen

Stability:

Frozen - 2.6 years
Room Temperature - 6 days
Refrigerated - 7 days

Unacceptable Condition:

Hemolysis greater than 5%

CPT Codes:

84402,84403

Method:

Testosterone: HPLC/tandem mass spectrometry
Free Testosterone: Equilibrium dialysis

Clinical Significance:

This method is recommended for testing women, children, and hypogonadal men.

Notes:

**This test is for Dr. Hamburg only**

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