Free T4 (FT4)
Department:
Biochemistry
Analytical Range:
1.3 - 100 pmol/L
Time Limit for Add on Tests:
4 days
Target Turnaround time:
1 working day
Further Information from LabTestsOnline
Tube Type:
Serum (Gold Top)
Availability:
North Devon District Hospital (Mon-Fri)
| <7 days 1 week - 3 months 3+ months | 11 – 32 pmol/L 11.5 – 28.3 pmol/L 12 – 22 pmol/L |
Patient preparation:
If taking supplements which may contain Biotin (Vitamin B7), do not take in the 8 hours prior to blood test - they may contain agents which affect the analysis