Testosterone Free and Total by ED/LC-MS/MS (Free) and LC-MS/MS (Total), Adult Males
Laboratory reference method for determining free and total testosterone in men. Total or free testosterone is generally adequate for most evaluations of suspected hypogonadism.
Quantitative Equilibrium Dialysis/High Performance Liquid Chromatography-Tandem Mass Spectrometry
Collect between 6-10 a.m.
Serum separator tube or green (sodium or lithium heparin).
Separate serum or plasma from cells ASAP or within 2 hours of collection. Transport 1 mL serum or plasma. (Min: 0.4 mL)
After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 2 months
|Male Free Testosterone, pg/mL|
|18 years and older: 47-244 pg/mL|
|Male Total Testosterone, ng/dL|
|18-39 years: 300-1080 ng/dL
40-59 years: 300-890 ng/dL
60 years and older: 300-720 ng/dL
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
Laboratory Developed Test (LDT)
|Component Test Code*||Component Chart Name||LOINC|
|2003247||Testos Free Adult Male ED/LC-MS/MS||2991-8|
|2004245||Testosterone Total, LC-MS/MS, Males||2986-8|
- Direct dialysis (Testosterone Free & Total by ED/LC-MS/MS (Free) and LC-MS/MS (Total), Adult Males)
- Total and Free (Testosterone Free & Total by ED/LC-MS/MS (Free) and LC-MS/MS (Total), Adult Males)