Reverse T3 Test in North Carolina
This page explains the reverse t3 test, what it measures, and how to arrange it. A reverse T3 test measures the amount of reverse T3, an inactive form of thyroid hormone, in a blood sample. It is usually ordered when a person has thyroid symptoms that do not match their other thyroid test results, or when a clinician is evaluating how the body converts thyroid hormone. This page covers the reverse t3 test for people in North Carolina, in South, from what it measures to how to arrange a draw.
- Sample type
- blood
- Category
- Thyroid
- Turnaround
- 1-3 business days
- Price
- $118
- Referral
- Not required
A reverse T3 test measures the amount of reverse T3, an inactive form of thyroid hormone, in a blood sample. It is usually ordered when a person has thyroid symptoms that do not match their other thyroid test results, or when a clinician is evaluating how the body converts thyroid hormone.
What it measures
- Reverse T3 — The main hormone measured; it is an inactive form of T3.
- Total T3 — Often checked alongside reverse T3 to compare active and inactive hormone levels.
- Free T4 — A storage form of thyroid hormone that the body converts into T3 or reverse T3.
- TSH — A pituitary signal that helps show whether the thyroid is being stimulated.
- Free T3 — The active thyroid hormone that affects energy, temperature, and metabolism.
Who it is for
A clinician such as an endocrinologist, primary care doctor, or other licensed provider may order this test when thyroid symptoms persist despite normal standard thyroid tests. It is not a routine screening test.
Preparation
No fasting is usually required. Tell your clinician about all medications, supplements, and recent illness, because these can affect thyroid hormone levels.
Results and what they mean
Results are reported as a numeric level for reverse T3 and any other markers tested, along with the laboratory's reference range. A clinician interprets these numbers together with your symptoms, history, and other thyroid tests. This is general information only and is not medical advice; discuss your results with a qualified healthcare professional.
Requesting the Reverse T3 Test in North Carolina
Order online, choose a certified collection site in North Carolina, and review results through a secure portal. No referral is required, and orders are processed confidentially. Access across South is expanding, so confirming a site ahead of time is worthwhile.
Frequently asked questions
Do I need to fast for a reverse T3 test?
No. Fasting is not normally required for this blood test.
Can I take my thyroid medication before the test?
Ask your clinician. Some medications may need to be timed differently, but do not stop or change any medication without medical advice.
How long until results are ready?
Results are typically available within 1 to 3 business days, though this can vary by laboratory.
Is a high reverse T3 always a problem?
No. Reverse T3 levels can rise with stress, illness, or dieting. Only a clinician can interpret what your result means for you.
Reverse T3 Test by city in North Carolina
- Reverse T3 Test in Charlotte
- Reverse T3 Test in Raleigh
- Reverse T3 Test in Winston-Salem
- Reverse T3 Test in Durham
- Reverse T3 Test in Greensboro
- Reverse T3 Test in Fayetteville
- Reverse T3 Test in Asheville
- Reverse T3 Test in Concord
- Reverse T3 Test in Wilmington
- Reverse T3 Test in Hickory
- Reverse T3 Test in Gastonia
- Reverse T3 Test in High Point
- Reverse T3 Test in Cary
- Reverse T3 Test in Burlington
- Reverse T3 Test in Greenville
- Reverse T3 Test in Jacksonville
- Reverse T3 Test in Rocky Mount
- Reverse T3 Test in Chapel Hill
- Reverse T3 Test in Huntersville
- Reverse T3 Test in Apex
- Reverse T3 Test in Kannapolis
- Reverse T3 Test in Mooresville
- Reverse T3 Test in Wilson
- Reverse T3 Test in Wake Forest
- Reverse T3 Test in Holly Springs
- Reverse T3 Test in Indian Trail
- Reverse T3 Test in Salisbury
- Reverse T3 Test in Monroe
- Reverse T3 Test in Goldsboro
- Reverse T3 Test in Fuquay-Varina
- Reverse T3 Test in New Bern
- Reverse T3 Test in Cornelius
- Reverse T3 Test in Garner
- Reverse T3 Test in Sanford
- Reverse T3 Test in Matthews
- Reverse T3 Test in Morrisville
- Reverse T3 Test in Statesville
- Reverse T3 Test in Thomasville
- Reverse T3 Test in Asheboro
- Reverse T3 Test in Kernersville
All testing in North Carolina → Full Reverse T3 Test guide →