Thyroid Profile IV – Full Thyroid & Autoimmune Screening (Hormones + Antibodies) LIS Code: TP IV
Book the Thyroid Profile IV blood test for a full assessment of TSH, Free/Total T3 & T4, Anti-TPO & Anti-TG antibodies. Diagnose and manage thyroid and autoimmune conditions. Private UK testing.
What's included in this profile
- The active, unbound form of the main thyroid hormone T4
- Checked alongside TSH to assess thyroid function
- Helps confirm an over or underactive thyroid
- The active, unbound form of the thyroid hormone T3
- The most biologically active thyroid hormone
- Particularly useful in assessing an overactive thyroid
- Antibodies against a protein made by the thyroid gland
- Raised levels can indicate autoimmune thyroid disease
- Often checked alongside TPO antibodies
- The pituitary hormone that signals the thyroid to produce T3/T4
- The primary firstline test for thyroid function
- Raised or low levels suggest an underactive or overactive thyroid
- Antibodies that can attack the thyroid gland
- Raised levels suggest an autoimmune thyroid condition (e.g. Hashimoto's)
- Helps explain the underlying cause of thyroid dysfunction
- The total amount of T4 hormone, bound and unbound
- An olderstyle thyroid test, less common than Free T4 now
- Reflects overall thyroid hormone production
- The total amount of T3 hormone, bound and unbound
- Reflects overall thyroid hormone production
- Often checked when hyperthyroidism is suspected
About this profile
The Thyroid Profile IV is our most detailed thyroid function test, designed to assess both hormone balance and autoimmune activity. This advanced blood test is ideal for individuals experiencing symptoms of thyroid dysfunction, or those with a history or risk of autoimmune thyroid disease such as Hashimoto’s or Graves’ disease.
This comprehensive profile combines all major thyroid hormones with two key antibody markers, delivering the highest level of diagnostic insight.
What’s Included in the Thyroid Profile IV Test?
✔ TSH (Thyroid Stimulating Hormone):
Produced by the pituitary gland, TSH regulates thyroid hormone production. Imbalances may indicate hypothyroidism or hyperthyroidism.
✔ Free T3 (Triiodothyronine):
The active form of thyroid hormone that helps regulate energy, metabolism, and temperature. Free T3 reflects the unbound, usable hormone in the bloodstream.
✔ Free T4 (Thyroxine):
The precursor to T3, Free T4 gives insight into how efficiently the thyroid is working.
✔ Total T3 & Total T4:
These tests measure both the active (free) and inactive (bound) hormone levels, offering a complete overview of your thyroid hormone levels.
✔ Anti-TPO (Anti-Thyroid Peroxidase Antibodies):
High Anti-TPO levels may indicate autoimmune thyroid conditions, especially Hashimoto’s or Graves’ disease.
✔ Anti-TG (Anti-Thyroglobulin Antibodies):
These antibodies attack thyroglobulin, a protein needed for hormone synthesis. Elevated levels are commonly found in Hashimoto’s thyroiditis.
Why Choose the Thyroid Profile IV?
- Offers complete thyroid and autoimmune analysis
- Helps diagnose complex or long-standing thyroid disorders
- Detects early signs of autoimmune thyroid conditions
- Ideal for monitoring ongoing thyroid treatment
- Supports accurate and personalised treatment plans
Whether you have existing thyroid issues or unexplained symptoms like fatigue, mood swings, or weight changes, this test offers reliable, detailed insights into your thyroid health.
