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LetsGetChecked - Thyroid Blood Spot Test Kit

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The LetsGetChecked - Thyroid Blood Spot Test Kit helps identify thyroid-related issues by measuring thyroid hormone levels. 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 Blood Spot Test Kit is a comprehensive home-testing kit designed to help patients identify and monitor any thyroid-related issues they may have. The kit includes all necessary equipment and instructions for collecting a small blood sample from the comfort of one's own home. Once the sample is collected, it can be sent to a state-of-the-art laboratory for analysis, and patients can expect to receive their results within a few days.


The test results can provide valuable insights into a patient's thyroid health, including whether their thyroid gland is overactive (hyperthyroidism), underactive (hypothyroidism), or functioning normally. In addition, the test can identify potential causes of these issues, such as autoimmune disorders or nutritional deficiencies. With this information, patients can work with their healthcare providers to develop an appropriate treatment plan tailored to their unique needs.


The LetsGetChecked - Thyroid 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), low FT4 levels can indicate an under active 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.


Benefits of the LetsGetChecked - Thyroid Blood Spot Test Kit:

  1. Convenience: The at-home testing kit allows individuals to collect a blood sample in the comfort of their own home, eliminating the need for a visit to a healthcare facility.
  2. Flexible Sampling: Since the test is performed at home, individuals have the flexibility to collect the sample at a time that suits their schedule.
  3. Thyroid Function Assessment: The test measures markers related to thyroid function, such as thyroid hormones (T3 and T4) and thyroid-stimulating hormone (TSH). These markers provide insights into the health and functioning of the thyroid gland.
  4. Early Detection of Imbalances: Monitoring thyroid hormone levels can help in the early detection of thyroid imbalances, such as hypothyroidism or hyperthyroidism, which can have various health implications.
  5. Personalized Health Information: The test results may offer personalized information about thyroid hormone levels, allowing individuals to better understand their thyroid health and make informed decisions about lifestyle or dietary changes.
  6. Support for Thyroid Conditions: For individuals with known thyroid conditions, the at-home test can be a convenient way to monitor thyroid hormone levels and assess the effectiveness of treatments or interventions.
  7. Professional Guidance: Let's Get Checked typically provides access to a team of healthcare professionals who can offer guidance and interpretation of test results, helping individuals understand the implications of their thyroid hormone levels.


When should I order a Thyroid 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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