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HelpTest ID FFBTT Testosterone, Free, Bioavailable, and Total, MS
Specimen Required
Caution: Administration of STRENSIQ may interfere in certain assays and may falsely elevate values. For patients receiving STRENSIQ, consideration should be given to using alternate methods.
Collection Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 2.8 mL
Collections Instructions:
1. Allow blood to clot at room temperature. Centrifuge and aliquot 2.8 mL of serum into a plastic vial.
2. Send refrigerate.
Reporting Name
Testosterone, Free, Bio, and TotalSpecimen Type
SerumSpecimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 7 days |
| Frozen | 28 days | |
| Ambient | 7 days |
Report Available
6 to 8 daysPerforming Laboratory
Quest Diagnostics Nichols InstituteLOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FFBTT | Testosterone, Free, Bio, and Total | Not Provided |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z6382 | Albumin | 1751-7 |
| Z6383 | SHBG | 13967-5 |
| Z6384 | Testosterone, Total, MS | 2986-8 |
| Z6385 | Testosterone, Free | 2991-8 |
| Z6386 | Testosterone, Bioavailable | 2990-0 |
Day(s) Performed
Monday through Sunday
Test Classification
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. The assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.CPT Code Information
82040
84270
84403
Specimen Minimum Volume
1.3 mL
Reference Values
See Laboratory Report
Method Name
Chromatography/Mass Spectrometry, Calculation (CALC), Spectrophotometry (SP), Immunochemiluminescent Assay