T4 Free (FT4)

$49.00

Code : 866 Specimen: Blood Note: Fasting is not required for this test  T4 Free (FT4)  T4 Free  is a blood test that is used in assessing thyroid function and to diagnose thyroid diseases or disorders like hyperthyroidism and hypothyroidism. This test is the most reliable measurement of T4 levels present in the blood as it […]

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Code : 866

Specimen: Blood

Note: Fasting is not required for this test

 T4 Free (FT4)

 T4 Free  is a blood test that is used in assessing thyroid function and to diagnose thyroid diseases or disorders like hyperthyroidism and hypothyroidism.

This test is the most reliable measurement of T4 levels present in the blood as it is not affected by protein levels,

Thyroxine, also known as T4, is one of the two main thyroid hormones. T4 plays a role in almost all psychological processes in the body including heart rate regulation, body metabolism and temperature.

Hashimoto’s thyroiditism is the most common culprit that causes hypothyroidism and is often tested for in thyroid tests, including TSH, T4 Free and Anti-Thyroid Antibody Test.

Turnaround for these tests is typically 3-5 business days.

Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.

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