Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Reference Guide
  /  
Access Med Labs
  /  
T3, Free

T3, Free

By 
Access Med Labs
T3, Free
Access Med Labs
Vibrant & Rupa Partnership Ended Feb 1st.
Vibrant Wellness & America are no longer available on platforms like Rupa, but we’ve created a list of comparable tests. You can also talk to a Rupa rep to help you transition to alternatives! Learn more.
Sign up free to order the 
T3, Free
 test.
One login for 30+ lab companies.
Start an Order

About the Test

Ordering the T3, Free with Access Medical Laboratories

A free T3 test measures Free Triiodothyronine (T3) level in the blood.

T3 levels are regulated by the feedback system that the body uses to maintain stable amounts of thyroid hormones in the blood. Most of the hormone produced by the thyroid is T4. This hormone is relatively inactive but is converted into the much more active T3 in the liver and other tissues.

T3 and T4 are two hormones that work together to regulate the body’s metabolism. These hormones play an essential role in controlling

the body’s weight, body temperature, muscle strength, and nervous system.

The T3 hormone is present in the blood in two forms:

Bound T3: which attaches to protein.

Free T3: which does not attach to anything (i.e., its free).

Both may be used to check T3 levels.

Since most T3 is bound to protein, the total T3 can be affected by protein levels in the body. Free T3 is not affected by protein levels.

Why is T3, Free Tested?

  • To help evaluate thyroid gland function.
  • To diagnose thyroid disease.
  • To monitor the effectiveness of treatment of a thyroid disorder.
  • T3 tests are frequently ordered together with T4 and TSH tests to have a complete picture of the thyroid function.

Which Patients is the T3, Free with Access Medical Laboratories Test Best Used For?

A T3 test is frequently requested to diagnose hyperthyroidism, a condition in which the body produces too much thyroid hormone.

Hyperthyroidism symptoms include:

  • Anxiety
  • High Metabolism
  • Tremors in the hands
  • Low tolerance for heat
  • Increased heart rate
  • Bulging of the eyes
  • Trouble sleeping
  • Fatigue

About the Test

This is a single-marker test measuring free T3. It is used to evaluate thyroid function.

Hey Practitioners! Want to learn from New York Times best-selling author Dr. Casey Means? In this upcoming free live class for practitioners, Dr. Means will teach us about the clinical importance of understanding metabolic health in every patient, how to test for it, and key dietary and lifestyle changes that can start to improve it. Sign up here!

More Resources

No items found.

Biomarkers

No items found.
Start an Order
Lab Test Information
Price
$
15
.00
 $
5.15
Sign up to View
Lab Company
Access Med Labs
Sample Type
Serum
Shipping Time
1 - 6 days
UPS
Turnaround Time
3 days
Test Preparation Starts
No test preparation required
Number of Collection Days
1 day
Methods Used For Processing
Immunoassay
Lab Certifications
CLIA Certified
CAP Accredited
ISO 15189
COLA Accredited
Order, track, and receive results from 30+ labs in one place.