Testosterone, Free, Adult Males by ED/LC-MS/MS




Test Mnemonic

FTESAM

CPT Codes

  • 84402 - QTY (1)

Aliases

  • Direct Dialysis

Performing Laboratory

ARUP


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumSST (Gold) FrozenSeparate serum from cells within 2 hours of collection.

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLPlasmaSodium or Lithium heparin (Green) FrozenSeparate plasma from cells within 2 hours of collection.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.4 mL     

Stability

Environmental Condition Description
Ambientafter separation from cells: 24 hours
Refrigeratedafter separation from cells: 1 week
Frozenafter separation from cells: 2 months

Days Performed

Sun - Sat

Turnaround Time

3 - 7 days

Methodology

Name Description
High Performance Liquid Chromatography/Electrospray Tandem Mass Spectrometry (HPLC-ESI-MS-MS) 
Quantitative Equilibrium Dialysis 

Reference Range

Testosterone, Fr Male
Sex Age From Age To Type Range Range Unit
Male18 Years99 YearsNormal47 - 244pg/mL

Special Info

Separate plasma from cells within 2 hours of collection. This test is New York DOH approved.