Thyroid

Thyroxine

Sample Type Serum
Test Code T4
Tubes SST
Turnaround Time Up to 24 hours
Special Instructions No Special Instructions

Thyroxine (Total T4) is a thyroid hormone measured to help assess thyroid gland function. Although free T4 is more commonly used in routine testing, total T4 may be useful in certain situations where changes in protein binding are suspected, such as during pregnancy or in specific medical conditions.

The findings related to these particular clinical tests are a general guide and do not cover every possible scenario, this is because every patient is unique and these results only have true clinical significance when combined with the patient’s full medical history, a physical exam, and other diagnostic findings.

Phlebotomy service fee: £21.