Thyroid Health Blood Test

Providing valuable insights whether you're experiencing fatigue, changes in mood, irregular cycles, or simply wish to stay informed about your health.

Your health, made clearer

Your thyroid controls more than you might think: from metabolism and mood to mental sharpness. As well as measuring levels of your thyroid hormones and detecting any antibodies against the thyroid gland, this comprehensive test also checks vitamin D levels, which play a key role in immunity and thyroid health.

Know what your blood knows

• Hormonal imbalances: Identify if there are any abnormalities in levels of your thyroid hormones, like free T4, free T3 and TSH, which could be linked to changes in your normal mood, weight, metabolism and overall health.
• Vitamin D: Vitamin D plays a crucial role in the normal functioning of our organs, including the thyroid gland. Low levels of vitamin D pose a risk factor for developing thyroid disorders, including autoimmune thyroid disease.1,2
• Immune status: Check for evidence of antibodies that may be targeted against your thyroid and disrupting your immune system, and which can be responsible for an overactive or underactive thyroid gland.3

How to take a thyroid blood test

• Do I need to fast?: No fasting is required for this thyroid blood test.
• When is the best time to test?: We recommend collecting your sample in the morning before 10am, when hormone levels are most stable.
• Can I take any medication as normal?: Yes, but if you're on thyroid hormone replacement (e.g. levothyroxine), take your medication after your blood test, not before, for the most accurate reading.

Why do people choose this test?

People often choose this test to explore symptoms like tiredness, mood changes, weight fluctuations, or irregular periods, especially if thyroid disorders run in the family or are suspected.

For women, it's commonly used during hormonal shifts such as pregnancy, postpartum, or perimenopause. For men, it's often used to investigate unexplained fatigue, low mood, or metabolism changes.

What does this thyroid test measure?

This test measures thyroid hormones (TSH, Free T4, Free T3) and thyroid antibodies (anti-TPO and anti-TG), along with vitamin D. Together, they provide a detailed picture of how well your thyroid gland is functioning and if an autoimmune component is present.

Description provided by Numan.