Triiodothyronine Hormone T3 Test is a laboratory test you can request directly. This blood test measures triiodothyronine (T3) to help assess thyroid gland function and identify potential deficiencies or excesses.
Typical turnaround1-3 business days
Price range$39
PreparationFollow the lab's instructions.
Sample typeBlood draw at a collection lab
ReferralNo referral required
What this test is
Triiodothyronine, or T3, is a hormone produced by the thyroid gland that plays a crucial role in metabolism. This test measures the levels of T3 in your blood, which can be either free or bound to proteins.
What it measures
Triiodothyronine (T3) — reflects thyroid hormone activity and metabolism
What the test involves
A healthcare professional will collect a blood sample, typically from a vein in your arm. The sample is then sent to a laboratory for analysis.
Why it is often ordered
Clinicians often order this test to evaluate symptoms related to thyroid function, such as unexplained weight changes or fatigue. It helps in diagnosing and monitoring thyroid conditions.
Preparation
Follow any specific instructions provided by the laboratory regarding food, drink, or medication intake before your blood draw. Some tests may require fasting.
How results are reported
Your results will indicate the measured levels of T3 in your blood. Reference ranges, which define what is considered typical, are provided by the laboratory and can vary.
Before you go
Specific preparation instructions
Typical turnaround time
How to interpret your results
Cities
Triiodothyronine Hormone T3 Test in Rhode Island communities
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