Lab comparison

Testosterone, Total: Quest vs LabCorp vs BioReference, tube, code & requirements

. This page shows collection requirements for all three major reference labs in one view, so you don’t have to cross-check three portals.

Always verify against your lab’s current collection manual before drawing.

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Every value on this page is verified by a nurse practitioner in active clinical practice, not scraped from an automated source.

RequirementQuest DiagnosticsLabCorpBioReference
Test code159830700010379-8
Primary tubeRed-top tube (no gel) or Serum separator tubeRed-top tube or gel-barrier tubeSST Tube
Specimen type1 mL serumSerum1 mL SST Tube
Patient prepState patient's age and sex on the test request form.State patient's age and sex on the test request form.State patient's age and sex on the test request form.
Minimum volume
Minimum volume
0.5 mL
Minimum Volume
0.6 mL (Note: This volume does not allow for repeat testing.)
Qty
1

Frequently asked questions

What is the Quest Diagnostics order code for Testosterone, Total?

The Quest Diagnostics order code for Testosterone, Total is 15983.

What tube color does LabCorp use for Testosterone, Total?

LabCorp uses a Red-top tube or gel-barrier tube for Testosterone, Total.

Does Testosterone, Total require fasting?

Testosterone, Total patient prep: State patient's age and sex on the test request form.. Always confirm with the ordering lab before the draw.

Data provenance

Source: Quest Diagnostics specimen collection manual, LabCorp directory of services, and BioReference laboratory collection guide.

Verified by: a licensed nurse practitioner in active clinical practice. Values are reviewed against each lab’s published collection requirements. Always confirm against your lab’s current manual before drawing.

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Related: why lab specimens get rejected, and how to prevent it

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