Reverse T3 Test in Oregon
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. Oregon residents in Pacific 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 Oregon
Order online, choose a certified collection site in Oregon, and review results through a secure portal. No referral is required, and orders are processed confidentially. With coastal metros, inland towns, and rural counties with very different access to testing, 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 Oregon
- Reverse T3 Test in Portland
- Reverse T3 Test in Eugene
- Reverse T3 Test in Salem
- Reverse T3 Test in Medford
- Reverse T3 Test in Gresham
- Reverse T3 Test in Bend
- Reverse T3 Test in Hillsboro
- Reverse T3 Test in Beaverton
- Reverse T3 Test in Albany
- Reverse T3 Test in Corvallis
- Reverse T3 Test in Springfield
- Reverse T3 Test in Tigard
- Reverse T3 Test in Aloha
- Reverse T3 Test in Lake Oswego
- Reverse T3 Test in Keizer
- Reverse T3 Test in Grants Pass
- Reverse T3 Test in Oregon City
- Reverse T3 Test in McMinnville
- Reverse T3 Test in Redmond
- Reverse T3 Test in Bethany
- Reverse T3 Test in Tualatin
- Reverse T3 Test in West Linn
- Reverse T3 Test in Wilsonville
- Reverse T3 Test in Woodburn
- Reverse T3 Test in Forest Grove
- Reverse T3 Test in Newberg
- Reverse T3 Test in Roseburg
- Reverse T3 Test in Happy Valley
- Reverse T3 Test in Hayesville
- Reverse T3 Test in Klamath Falls
- Reverse T3 Test in Ashland
- Reverse T3 Test in Milwaukie
- Reverse T3 Test in Sherwood
- Reverse T3 Test in Altamont
- Reverse T3 Test in Hermiston
- Reverse T3 Test in Cedar Mill
- Reverse T3 Test in Central Point
- Reverse T3 Test in Lebanon
- Reverse T3 Test in Canby
- Reverse T3 Test in Oak Grove