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EPIC ORDER CODE LAB4340 Testosterone, Free (Adult Females, Children, or Individuals on Testosterone-Suppressing Hormone Therapy)

Additional Codes

SQ : FTSTFC

COLLECTION

Container/Tube Type: 

SST (Serum Separator)
Green No Gel (Lithium Heparin)
Dark Green (Sodium Heparin)

 

Collection Information: 

Collect serum separator tube or green (lithium or sodium heparin) specimen between 6-10 a.m.    

 

Sample Volume Requirements: 

Centrifuge and aliquot 1.0 mL of serum or plasma into a plastic transport vial. Send refrigerated.

 

Minimum Sample Volume: 

0.8 mL of serum or plasma (approximately 1.6 mL of whole blood based upon a normal patient hematocrit)

 

Unacceptable Conditions: 

EDTA Plasma

STABILITY

Refrigerated Stability: 

7 days

 

Frozen Stability: 

6 months

 

Ambient Stability: 

24 hours

PERFORMING LAB

Performed: 

Sun - Sat

 

Analytical Time: 

1 - 4 days

 

Testing Laboratory: 

ARUP Laboratories; Salt Lake City, UT

 

Laboratory Section: 

Referral Testing

 

 

REMARKS

Interpretive Data: 

Provides a calculated value for free testosterone concentration using total testosterone measured by mass spectrometry. May be used to evaluate hyperandrogenism in children and cisgender females, monitor testosterone-suppressing hormone therapies (eg, antiandrogens or estrogens), evaluate testosterone status in individuals with protein-binding abnormalities, or evaluate hypogonadism in cisgender males.

CPT Code

84402