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A commonly ordered thyroid panel – this is a blood test that checks for two markers related to thyroid function, and calculates a third from those results.

These include:

  • Free thyroxine index
  • T3 uptake (THBR)
  • Thyroxine (T4)

Typical turnaround time is within one day, although this may vary due to other tests ordered for the same blood draw, and expected variation of  testing.

Also called: ’99 Thyroid Profile (Compliance)