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T4, FREE (DIRECT)

A Free T4 Direct blood test measures the active, unbound amount of thyroxine (T4) hormone circulating in your blood using a direct testing method.
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  • Sample type: Stool water
  • Preparation: You must activate, collect, and ship back on the same day (must be a weekday). More details
  • Test type: Home Collection Kit

Price : $39.30

About the Test

A Free T4 Direct blood test measures the active, unbound amount of thyroxine (T4) hormone circulating in your blood using a direct testing method.



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