Total T4 Test in Maine
Total T4 Test is a laboratory test you can order directly. A total T4 test measures the total amount of thyroxine (T4), a thyroid hormone, in your blood. It is often ordered to help evaluate thyroid function when symptoms such as fatigue, weight changes, or irregular heartbeat are present. Across Maine, part of New England, the total t4 test can be ordered directly and collected at a certified site — no referral required.
- Sample type
- blood
- Category
- Thyroid
- Turnaround
- 1-3 business days
- Price
- $49
- Referral
- Not required
A total T4 test measures the total amount of thyroxine (T4), a thyroid hormone, in your blood. It is often ordered to help evaluate thyroid function when symptoms such as fatigue, weight changes, or irregular heartbeat are present.
What it measures
- Total T4 — The combined amount of T4 that is free and bound to proteins in the blood.
- Free T4 (indirect) — Sometimes calculated from total T4 and a protein measurement, but not directly measured in this test.
- Thyroxine-binding globulin (TBG) — A protein that binds T4; not directly measured, but its levels can affect total T4 results.
Who it is for
A healthcare provider typically orders a total T4 test when checking for an overactive or underactive thyroid, or to monitor thyroid treatment.
Preparation
No fasting is required. Tell your provider about any medications, especially thyroid drugs or birth control, as they can affect results.
Results and what they mean
Results are reported as a number with a reference range, usually in micrograms per deciliter (mcg/dL). A clinician interprets your result along with your symptoms, history, and other thyroid tests. This is general information, not medical advice.
Requesting the Total T4 Test in Maine
Order online, choose a certified collection site in Maine, and review results through a secure portal. No referral is required, and orders are processed confidentially. Access across New England is tightly woven, so confirming a site ahead of time is worthwhile.
Frequently asked questions
Do I need to fast for a total T4 test?
No, fasting is not needed. You can eat and drink normally before the blood draw.
What can affect my total T4 result?
Pregnancy, birth control pills, and some medications can raise or lower total T4. Always share your medication list with your provider.
Is total T4 the same as free T4?
No. Total T4 includes both bound and free hormone, while free T4 measures only the unbound, active portion. They are different tests.
How long until I get my results?
Results are typically available within 1 to 3 business days.
Total T4 Test by city in Maine
- Total T4 Test in Portland
- Total T4 Test in Lewiston
- Total T4 Test in Bangor
- Total T4 Test in South Portland
- Total T4 Test in Auburn
- Total T4 Test in Biddeford
- Total T4 Test in Sanford
- Total T4 Test in Saco
- Total T4 Test in Westbrook
- Total T4 Test in Augusta
- Total T4 Test in Waterville
- Total T4 Test in Brewer
- Total T4 Test in Presque Isle
- Total T4 Test in Bath
- Total T4 Test in Ellsworth
- Total T4 Test in Caribou
- Total T4 Test in Old Town
- Total T4 Test in Rockland
- Total T4 Test in Belfast
- Total T4 Test in Gardiner
- Total T4 Test in North Windham
- Total T4 Test in Lisbon Falls
- Total T4 Test in York Harbor
- Total T4 Test in South Berwick
- Total T4 Test in Lisbon
- Total T4 Test in South Eliot
- Total T4 Test in Calais
- Total T4 Test in Lake Arrowhead
- Total T4 Test in Cumberland Center
- Total T4 Test in Hallowell
- Total T4 Test in Cape Neddick
- Total T4 Test in South Paris
- Total T4 Test in Dunstan
- Total T4 Test in Falmouth Foreside
- Total T4 Test in Veazie
- Total T4 Test in Steep Falls
- Total T4 Test in Eastport
- Total T4 Test in West Kennebunk
- Total T4 Test in Cornish
- Total T4 Test in Kittery Point