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LetsGetChecked - Thyroid Antibody Blood Spot Test Kit

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The LetsGetChecked - Thyroid Antibody Blood Spot Test Kit is a screening tool that examines thyroid disorders by measuring and detecting thyroid hormones and antibodies present in the blood. Get 25% off today with our exclusive discount code WALKINLAB.


Test Code:




Finger Prick


Collect the sample in the morning and return it on the same day using the provided carrier method. Fasting is not required, but it may impact TSH levels. Consult with your healthcare provider. Use the prepaid shipping envelope to return samples to the laboratory. Avoid weekends for sample collection or return.

Test Results:

2-5 business days once the lab receives the specimen. May take longer based on weather, holiday, or lab delays.


Walk-In Lab is an affiliate of LetsGetChecked. By adding this kit to your cart you will be directed to the LetsGetChecked website. LetsGetChecked Kits must be purchased separately from other Walk-In Lab tests. Walk-In lab has negotiated a special price for our customers. Please enter the coupon code that is provided on the top banner of the LetsGetChecked site to receive the special price.

What is a thyroid?

The thyroid is a small, butterfly-shaped gland located in the front of the neck, just below the Adam's apple. This gland produces several hormones, including thyroxine (T4) and triiodothyronine (T3), which are responsible for regulating metabolism, heart rate, body temperature, and other important bodily functions. These hormones are released into the bloodstream and transported throughout the body, where they help to maintain overall health and well-being. In addition to producing hormones, the thyroid gland is also responsible for storing iodine, a mineral essential for producing thyroid hormones. Overall, the thyroid gland plays a crucial role in maintaining optimal health and is an important part of the endocrine system.


What is the purpose of this test?

The LetsGetChecked - Thyroid Antibody Blood Spot Test Kit is a diagnostic tool that measures the levels of thyroid antibodies present in your blood. Thyroid antibodies are proteins that your immune system produces when it mistakenly attacks your thyroid gland. These antibodies can cause inflammation and damage the thyroid gland, leading to various thyroid disorders. By measuring the levels of thyroid antibodies in your blood, this test can help diagnose autoimmune thyroid diseases such as Hashimoto's thyroiditis and Graves' disease.


The LetsGetChecked - Thyroid Antibody Blood Spot Test Kit is particularly useful for people who are experiencing symptoms such as fatigue, weight gain/loss, hair loss, and muscle weakness, which can be caused by thyroid disorders. It is also recommended for people who have a family history of thyroid disease or those who have been previously diagnosed with a thyroid condition.


The test is easy to use - all you need to do is collect a small blood sample using the provided kit and send it back to the laboratory for analysis. The test results will be available online within a few days, along with an interpretation of the results. With this information, you can work with your healthcare practitioner to develop an appropriate treatment plan and effectively manage your thyroid condition.


The LetsGetChecked - Thyroid Antibody Blood Spot Test Kit measures the following:

Thyroid Stimulating Hormone (TSH) - Thyroid stimulating hormone (TSH), also known as thyrotropin, is a hormone produced by the pituitary gland of the brain. The release of TSH stimulates the thyroid gland to produce thyroxine (T4) and triiodothyronine (T3). These hormones regulate the body's metabolism.


Free Thyroxine (FT4) - Free thyroxine (FT4) is the biologically active form of thyroxine, a hormone produced in the thyroid gland to regulate your metabolism. FT4 is not bound to proteins and is available for use by the tissues of the body. Raised FT4 levels can indicate an overactive thyroid (hyperthyroidism), and low FT4 levels can indicate an underactive thyroid (hypothyroidism).


Free Triiodothyronine (FT3) - Free triiodothyronine (FT3) is one of two major hormones produced by the thyroid gland. FT3 is more biologically active than thyroxine (T4) and is required to regulate metabolism. FT3 is produced directly by the thyroid gland and through the conversion of T4 to T3 in other cells of the body.


Thyroglobulin Antibodies (TGAB) - TGAB is an antibody indicating thyroid damage caused by an autoimmune disorder.


Thyroid Peroxidase Antibodies (TPO/TPEX) - TPEX is an antibody indicating thyroid damage caused by an autoimmune disorder.


Benefits of the LetsGetChecked - Thyroid Antibody Blood Spot Test Kit:

  1. Detection of Autoimmune Thyroid Disorders: The test can help detect autoimmune thyroid disorders, such as Hashimoto's thyroiditis and Graves' disease. These conditions involve the immune system mistakenly attacking the thyroid gland, and the presence of specific antibodies can indicate such disorders.
  2. Early Identification of Thyroid Issues: Monitoring thyroid antibodies can provide early indications of thyroid problems before symptoms become evident. Early detection may allow for timely intervention and management.
  3. Assessment of Hashimoto's Thyroiditis: Hashimoto's thyroiditis is a common cause of hypothyroidism, and specific antibodies like anti-thyroid peroxidase (anti-TPO) antibodies can indicate this condition.
  4. Identification of Graves' Disease: Graves' disease, an autoimmune disorder leading to hyperthyroidism, is associated with the presence of antibodies such as thyroid-stimulating immunoglobulin (TSI). The test can help identify these antibodies.
  5. Personalized Health Insights: The test results can provide individuals with personalized insights into the status of their thyroid health, particularly about autoimmune factors.
  6. Guidance for Treatment and Management: The test can offer additional information to guide treatment decisions and ongoing management for individuals already diagnosed with a thyroid disorder.
  7. Professional Support: LetsGetChecked typically offers access to a team of healthcare professionals who can provide guidance and interpretation of the test results, helping individuals understand the implications of thyroid antibody levels.
  8. Convenience and Privacy: The at-home blood spot test provides the convenience of collecting a blood sample at home, avoiding the need for a visit to a healthcare facility. This can be particularly beneficial for individuals who prefer privacy or have difficulty accessing traditional healthcare services.


When should I order a Thyroid Antibody Blood Spot Test Kit?

Individuals may order this test if they have experienced symptoms related to thyroid-related conditions, such as hyperthyroidism or hypothyroidism.


Symptoms of hyperthyroidism:


  • Rapid weight loss
  • Increased appetite
  • Anxiety and irritability
  • Insomnia
  • Rapid or irregular heartbeat
  • Increased sweating
  • Tremors in hands and fingers
  • Changes in menstrual patterns
  • Increased sensitivity to heat
  • Changes in bowel patterns
  • Enlargement of thyroid gland
  • Fatigue and muscle weakness
  • Thin and brittle hair and nails
  • Bulging eyes (in Graves' disease)


Symptoms of hypothyroidism:


  • Fatigue
  • Weight gain
  • Dry skin
  • Hair loss
  • Cold intolerance
  • Constipation
  • Depression
  • Muscle weakness
  • Joint pain
  • Heavy or irregular menstrual periods (in women)

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