Reverse T3 Test in New Hampshire
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. New Hampshire residents in New England can request the reverse t3 test online and choose a convenient collection point.
- 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 New Hampshire
Order online, choose a certified collection site in New Hampshire, and review results through a secure portal. No referral is required, and orders are processed confidentially. With short distances between towns that keep most people within an easy drive of a draw site, it pays to schedule your collection in advance.
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 New Hampshire
- Reverse T3 Test in Nashua
- Reverse T3 Test in Manchester
- Reverse T3 Test in Portsmouth
- Reverse T3 Test in Dover
- Reverse T3 Test in Concord
- Reverse T3 Test in Rochester
- Reverse T3 Test in Keene
- Reverse T3 Test in Laconia
- Reverse T3 Test in Lebanon
- Reverse T3 Test in Claremont
- Reverse T3 Test in Somersworth
- Reverse T3 Test in Berlin
- Reverse T3 Test in Franklin
- Reverse T3 Test in South Hooksett
- Reverse T3 Test in Suncook
- Reverse T3 Test in Pinardville
- Reverse T3 Test in East Merrimack
- Reverse T3 Test in Tilton Northfield
- Reverse T3 Test in Hampton Beach
- Reverse T3 Test in North Conway
- Reverse T3 Test in Woodsville
- Reverse T3 Test in West Swanzey
- Reverse T3 Test in Contoocook
- Reverse T3 Test in North Haverhill