Coronavirus: Our warehouse is open and orders are being shipped as normal.

We are working towards a 20 working day turn around time for all EcologiX profiles. This will soon return to 15. Please check with the Post Office, or your courier company of choice, that they are able to deliver within 48 hours and ensure you ship on the day you collect your sample.

If you have any questions, our wonderful customer services team are on hand.
With love, Invivo

Essential Thyroid Profile



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An essential thyroid screen for assessment of hypo-or hyper-thyroidism, determination of Free T4 levels, Free T3 and autoimmune thyroid antibodies in a convenient, easy to complete dried blood sample.


Sample type: Bloodspot
Turnaround time: 5 working days
Lab: ZRT Laboratory


  • Free T4
  • Free T3
  • TSH
  • TPOab

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