Full Thyroid Profile

Check your thyroid gland

This test is delivered through our partnership with London Medical Laboratory.

The price of one in-pharmacy test will be discussed as part of the booking process, before your appointment is confirmed.

Introduction

Disorders affecting the thyroid gland are rarely diagnosed, despite being relatively common. A simple test can evaluate whether your thyroid gland is functioning correctly.

There are two main conditions that may be diagnosed through thyroid testing: hyperthyroidism and hypothyroidism. Hyperthyroidism is an overactive thyroid. Hypothyroidism is an underactive thyroid. Common symptoms of thyroid disorders include fatigue, weight problems and mood-related issues.

Testing your thyroid will reveal whether it is currently functioning effectively and may indicate an underlying cause for any thyroid disorder. For instance, hypothyroidism is often caused by autoimmune problems.

How does the test work?

The simplest and most effective way to check on your health is with a blood test. It can be used as a diagnostic tool and to observe the progression of preexisting conditions.

Blood tests are quick, cost-effective and simple to perform. They allow you to satisfy your curiosity and be well-informed about your current health, whether because of an existing diagnosis that needs to be monitored, or because of as-yet unexplained symptoms.

Our pharmacies offer a quick and convenient blood test on-site. The process is designed to minimise stress.

Results will be available within five to seven days.

*Note: a blood test is not a substitute for a full consultation with a doctor or other medical professional. If you are currently experiencing health issues, you should seek a professional diagnosis, especially before embarking on a course of treatment.

What do you test?

Thyroid (five biomarkers)

Many people experience thyroid disorders but do not obtain a diagnosis. Common symptoms include fatigue, weight problems and trouble with your mood.

Thyroid stimulating hormone

Thyroid stimulating hormone (TSH) originates in the pituitary gland, which is found in the brain. The release of TSH causes the thyroid gland in the throat to stimulate hormone production. These hormones can impact your weight and muscle strength as well as your body temperature. Tests of thyroid functioning will often measure TSH alongside free T4 and free T3 hormones. Problems with your TSH levels may be suggestive of thyroid disease.

Free T4 (thyroxine)

Free T4, or thyroxine, is one of the hormones originating in the thyroid gland. The release of free T4 impacts growth and metabolism among other important biological roles. Testing of free T4, alongside free T3 and TSH, is used when diagnosing female infertility issues, as well as to identify thyroid disorders such as hyperthyroidism and hypothyroidism.

Free T3

The long name for free T3 is free triiodothyronine. Again, this hormone has its origins in the thyroid. It has an important role to play in human metabolism. Abnormal levels may be indicative of hyperthyroidism or other disorders relating to the thyroid gland. Tests of free T3 take place alongside tests of free T4 and TSH.

Antithyroglobulin antibodies

Your thyroid gland is protected from external threats by antithyroglobulin antibodies (Anti-Tg). These originate in the immune system, but if you have an autoimmune disorder, they may be produced in excessive amounts. Healthy thyroid cells may then be targeted by these antibodies. An anti-TG test may be able to tell you about both autoimmune and thyroid issues.

Thyroid peroxidase antibodies

Thyroid peroxidase antibodies (anti-TPO) are another way that your immune system protects your thyroid gland from harmful invaders. Excess anti-TPO may be caused by an autoimmune disorder, and can lead to healthy thyroid cells also being targeted. This means that both autoimmune and thyroid problems may be diagnosed by testing your anti-TPO levels.

FAQs

How frequently should I take a thyroid test?

If you experience symptoms that suggest a potential thyroid disorder, you should take a thyroid test. If you are diagnosed with thyroid problems, you should continue to take thyroid tests regularly.

How can you identify the early signs of a thyroid issue?

As well as the main symptoms, signs of a thyroid disorder include dry skin, tremors, sweating, difficulty concentrating and puffiness affecting the hands, feet or face.

What is an autoimmune thyroid condition?

This is when the antibodies produced by your immune system to protect your thyroid attack it instead. This may lead to it becoming overactive or underactive.

How does this test differ from the thyroid function baseline profile?

The thyroid function baseline profile does not include testing for antithyroglobulin antibodies or thyroid peroxidase antibodies, and therefore cannot be used to diagnose an autoimmune thyroid disorder. Other than this, the same biomarkers are tested.