Testosterone, Free (Dialysis) and Total, MS
Also known as F Testo, Free & Total Testosterone, LC/MS/MS, Testosterone Index, Testosterone, Total/Free, Pediatric, Dialyzable Testosterone, Fractionated Testosterone, Free and Unbound Testosterone
What it measures
- Testosterone, Total, MSLOINC 2986-8
- Testosterone, FreeLOINC 2991-8
Specimen
- Specimen
- 1.8 mL serum
- Minimum volume
- 0.9 mL
- Also accepted
- Plasma collected in: Sodium heparin (green-top) tube or lithium heparin (green-top) tube
- Container
- Transport tube
- Temperature
- Room temperature
Specify age and sex on test request form. Red-top tube (no gel): Allow blood to clot at room temperature. Centrifuge to separate the serum from the cells and immediately pour serum into a plastic transport tube. Serum separator tube: Allow blood to clot at room temperature, centrifuge, and remove serum from the gel immediately (not to exceed 48 hours) by pouring serum into a plastic transport tube.
Turnaround
Set up: Daily
Billing
CPT 84402, 84403