Thyroxine Blood Test (T4)

You can attend immediately for this test between 7-7 Mon-Fri and 7-1 on Saturdays.
This private blood test for Thyroxine (T4) in London has a guaranteed turnaround time of 1 working day or less and tests for Thyroxine (T4) only. Turnaround Time
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A GP Referral is Included
Attend the Walk-in Laboratory
Receive Accredited Testing
Doctor's Comments are Available
Results are sent via Email

Thyroxine (T4) is the major secretory hormone of the thyroid. Only 0.03% of T4 is unbound and free for exchange with tissues. Thyroid function may be assessed with thyroid stimulating hormone (TSH) and free T4 measurements.