TSI Test in Connecticut
TSI Test can be requested without a referral, and this overview covers what to expect. The TSI (Thyroid-Stimulating Immunoglobulin) test is a blood test that measures antibodies that can overstimulate the thyroid gland. It is most often ordered to help diagnose Graves' disease, an autoimmune condition that causes hyperthyroidism, and to monitor treatment response. This page covers the tsi test for people in Connecticut, in New England, from what it measures to how to arrange a draw.
- Sample type
- blood
- Category
- Thyroid
- Turnaround
- 1-3 business days
- Price
- $119
- Referral
- Not required
The TSI (Thyroid-Stimulating Immunoglobulin) test is a blood test that measures antibodies that can overstimulate the thyroid gland. It is most often ordered to help diagnose Graves' disease, an autoimmune condition that causes hyperthyroidism, and to monitor treatment response.
What it measures
- TSI level — The amount of thyroid-stimulating immunoglobulin in the blood; higher levels suggest Graves' disease.
- TSI index — A calculated ratio that compares your TSI level to a reference standard, helping interpret results.
- TSI percentage — Sometimes reported as a percentage of a normal reference range, indicating relative antibody activity.
- Thyroid-stimulating antibody (TSAb) — A related antibody that may be measured alongside TSI to assess thyroid stimulation.
Who it is for
A doctor typically orders a TSI test when you have symptoms of hyperthyroidism, such as unexplained weight loss, rapid heartbeat, or tremors, or when other thyroid tests suggest Graves' disease.
Preparation
No fasting or special preparation is needed for a TSI test. You can eat and drink normally before your blood draw.
Results and what they mean
Results are usually reported as a number or percentage, with a reference range provided by the lab. Your clinician will interpret your TSI level along with your symptoms and other thyroid tests. This information is general and not a substitute for medical advice.
Requesting the TSI Test in Connecticut
Order online, choose a certified collection site in Connecticut, 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
What does a high TSI level mean?
A high TSI level often points to Graves' disease, but only your doctor can confirm a diagnosis after reviewing all your test results and symptoms.
Do I need to fast before a TSI test?
No, fasting is not required. You can eat and drink as usual before the blood draw.
How long does it take to get TSI test results?
Results are typically available within 1 to 3 business days, though this can vary by laboratory.
Can TSI levels change over time?
Yes, TSI levels can rise or fall with treatment or over the course of the condition. Your doctor may repeat the test to monitor changes.
TSI Test by city in Connecticut
- TSI Test in Bridgeport
- TSI Test in Hartford
- TSI Test in New Haven
- TSI Test in Norwich
- TSI Test in Waterbury
- TSI Test in Danbury
- TSI Test in Stamford
- TSI Test in Norwalk
- TSI Test in New Britain
- TSI Test in Meriden
- TSI Test in Bristol
- TSI Test in West Haven
- TSI Test in Milford city
- TSI Test in Middletown
- TSI Test in Shelton
- TSI Test in Torrington
- TSI Test in Naugatuck
- TSI Test in New London
- TSI Test in Wallingford Center
- TSI Test in Ansonia
- TSI Test in Willimantic
- TSI Test in Storrs
- TSI Test in Derby
- TSI Test in Trumbull Center
- TSI Test in Kensington
- TSI Test in Oakville
- TSI Test in Conning Towers Nautilus Park
- TSI Test in Sandy Hook
- TSI Test in Riverside
- TSI Test in Long Hill
- TSI Test in Glastonbury Center
- TSI Test in Thompsonville
- TSI Test in Southwood Acres
- TSI Test in Rockville
- TSI Test in New Canaan
- TSI Test in Staples
- TSI Test in Cos Cob
- TSI Test in Old Greenwich
- TSI Test in Winsted
- TSI Test in Northford