T4 Free Test
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This test measures the level of free T4 in the body to help evaluate Thyroid Gland function; to help diagnose thyroid disease; to monitor effectiveness of thyroid treatment.
T4 hormones help regulate metabolism and body temperature.
Thyroid conditions can affect anyone but are more common in women.
If a person does not produce enough T4 (hypothyroidism) or produces too much of it (hyperthyroidism) can experience certain symptoms such as: weight gain, dry skin, cold intolerance, increases heart rate, anxiety, tremors, etc.
Preparation: Fasting is not necessary for this test. If you take thyroid hormone as a treatment it is recommended to take the test before your dose of the day.
You can order this test individually or as part of the following panels: