Test directory: Testosterone, Total and Free

Ordering Code297
Test NameTestosterone, Total and Free
AliasTestosterone Index
Testosterone, Dialyzable
Testosterone, Fractionated
Testosterone, Total MS & Testosterone, Free (Dialysis)
Preferred SpecimenSerum
Preferred ContainerPlain (Red)
Other Specimen/ContainerPlasma in Lithium Heparin (Green),
Plasma in Sodium Heparin (Green)
Optimum Volume2 mL
Collection InstructionsDo NOT combine with other tests
** Have this test NOT be shared with any other tests even within its OWN worklist. **
Draw 2 tubes.
Handling InstructionsNeeds own aliquot.
Transport RequirementsOahu: Ambient
Airline: Frozen
Specimen StabilityAmbient: 7 Days
Refrigerated: 7 Days
Frozen: 2 Years
Rejection CriteriaGrossly hemolyzed, Lipemic, Specimen collected in an SST
Avail. StatNO
Analytic Time7 Days
MethodologyLiquid Chromatography Tandem Mass Spectrometry, Tracer
Equilibrium Dialysis, Calculation
Reference Lab Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of April 25, 2024.
ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Testosterone, TotalALLSee report.
Testosterone, FreeALLSee report.