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Test Code TTFB Testosterone, Free, Bioavailable and Total, MS

Important Note

Test Performed at Quest Nichols Institute. Complete test detail here

Specimen Volume

Preferred: 2.8 mL

Minimum: 1.3 mL

Preferred Specimen:

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.

Transport

Routine Courier Pick-up

Department

Quest Diagnostics Nichols Institute

Methodology

Chromatography/Mass Spectrometry • Calculation (CALC) • Spectrophotometry (SP) • Immunochemiluminescent Assay

STAT Turn-around Time

N/A

Routine Turn-around Time

5 Days

Reference Range

See Laboratory Report

Specimen Stability

Ambient: 7 Days

Refrigerated: 7 Days

Frozen: 28 Days