Test Details
Mnemonic
TEFFC
Ordering Code
3600009
CPT-4 Code(s)
84402
Specimen Information
Patient Preparation
Collect between 6 - 10 a.m.
Collect
Serum separator tube (SST)
Specimen Preparation
Centrifuge, separate serum from cells within 2 hours of collection and send 1.0 mL serum in a screw capped plastic vial.
Alternate Specimen
Serum: Red top
Plasma: Green sodium or lithium heparin
Plasma: Green sodium or lithium heparin
Minimum Volume
0.8 mL
Transport Temperature
Refrigerated
Rejection Criteria
Plasma: EDTA
Stability
Room temperature: 24 hours
Refrigerated: 7 days
Frozen: 6 months
Refrigerated: 7 days
Frozen: 6 months
Methodology
Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry/Electrochemiluminescent Immunoassay
Reference Range
See report
Total Testosterone and SHBG are measured and free testosterone is estimated from these measurements.
Total Testosterone and SHBG are measured and free testosterone is estimated from these measurements.
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes