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Free T3 - Free triiodothyronine - serum

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Eurofins Biomnis code

FT3

Synonyms

  • Endocrinology
  • FT3
  • Free triiodothyronine

Clinic significance

The unbound, biologically active fraction of triiodothyronine (T3) represents 0,3% of total T3. Variations in the levels of transport proteins do not affect the level of the unbound form. This test is useful in the investigation of hyperthyroidism and for therapeutic monitoring of patients taking amiodarone or corticosteroids.

Prenalytics

  • 1 mL
  • Serum
  • Refrigerated

Further information

  • ATTENTION: interference possible in patients treated with biotin (vitamin B7, B8 or H) or taking any food supplement containing biotin. Essential to STOP treatment 8 days before taking the sample.

Methodology

Electrochemiluminescence

Turnaround time

2 days


Pathologist(s) in charge
Biomnis Paris
Specialty
Biochemistry
Contact(s)
Dr Jean Marc VANDERNOTTE
Dr Corinne SAULT
Phone(s)
+331 49 59 63 01
+334 72 80 73 75