Testosterone, Free, Equilibrium Ultrafiltration with Total Testosterone, LC/MS-MS
Testosterone, Free, Equilibrium Ultrafiltration with Total Testosterone, LC/MS-MS-13510
Testosterone, Free, Equilibrium Ultrafiltration with Total Testosterone, LC/MS-MS
13510
LAB13510
TESTF
Testosterone, free and total
- Testosterone, Total, LC/MS
- Testosterone, Free
- % Free Testosterone
- Evaluate hirsutism and masculinization in women
- Evaluate testicular function in clinical states in which the testosterone-binding proteins may be altered (obesity, cirrhosis, thyroid disorders)
Serum
2.2 mL
1.8 mL
(Note: This volume does not allow for repeat testing.)
(Note: This volume does not allow for repeat testing.)
Note: Collect 2 Gold SST tubes
Immediately following collection, mix sample by gently inverting 5 times
- Allow sample to clot for a minimum of 30 minutes
- Spin and transfer aliquot within one (1) hour of sample collection
Gold serum separator (SST) tube
- Allow sample to clot
- Spin within one (1) hour of sample collection
- Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum
Ambient (preferred)- 7 days
Refrigerated - 7 days
Frozen - 14 days
Freeze/thaw cycles - stable x9
- Hemolyzed or icteric sample
- Gross lipemia (may yield erroneously high testosterone results)
- Recently administered isotopes
- Plasma specimen received
- Improper labeling
- Specimen drawn in citrate or ACD tube
LabCorp Burlington (070038): R-LC
Daily
4 - 6 days
Free: Equilibrium ultrafiltration
Total: Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
See report
84402
84403
84403
Result 2986-8, 2991-8, 15432-8
04/11/2019
05/20/2024
10/18/2023