Thyroid Test (Medium)
Order a comprehensive thyroid test at home. Measure TSH, FT3, FT4 & TPOAb with our full thyroid panel at home. CLIA-certified results in 1-3 days.
Product details: USD 119 — InStock — SKU gettested_thyroid_test_medium_test — GetTested
About this test
How It Works
You collect a small blood sample at home using a finger-prick method. The sample is then sent to a CLIA-certified laboratory for analysis, and your results are delivered digitally once testing is complete.
Dried Blood Spot (DBS) Collection
The test uses a dried blood spot (DBS) sample. A few drops of blood are collected from your fingertip and placed on a collection card, which is then left to dry before being sent to the laboratory.
This method is widely used and offers a convenient alternative to traditional blood sampling.
Preparation Instructions
Avoid taking biotin (Vitamin B7) supplements for at least 72 hours prior to sample collection, as this may influence test results.
Collect your sample in the morning, preferably before eating or drinking (except water).
Avoid strenuous exercise prior to testing, as this may affect results.
Who Should Consider This Thyroid Test
This test is relevant for individuals who want a more comprehensive understanding of thyroid function.
It may be particularly useful when exploring symptoms such as fatigue, weight changes, or sensitivity to cold or heat, or when seeking additional insight into factors that may influence thyroid function, including autoimmune activity.
Understanding CLIA Certification
Your sample is analyzed in a CLIA-certified laboratory, ensuring that testing is performed according to established U.S. quality standards using validated methods.
Biomarkers included
- TSH: Thyroid-Stimulating Hormone (TSH), also known as thyrotropin, is a hormone produced by the pituitary gland. It plays a crucial role in regulating thyroid function by stimulating the thyroid gland to produce and release thyroid hormones (T3 and T4), which are vital for metabolism, growth, and development. Measuring TSH levels is a primary way to assess thyroid gland activity and diagnose thyroid di
- Free Triiodothyronine (fT3): Free Triiodothyronine (fT3) is the unbound, active form of the thyroid hormone triiodothyronine (T3). It is crucial for regulating metabolism, energy levels, body temperature, and heart function. Measuring fT3 provides a direct assessment of the biologically active thyroid hormone available to tissues, reflecting current thyroid function more accurately than total T3 in many cases.
- TPOAb (Thyroid Peroxidase Antibodies): TPOAb (Thyroid Peroxidase Antibodies) are autoantibodies that attack thyroid peroxidase, an enzyme critical for thyroid hormone production. Their presence indicates an autoimmune thyroid condition, such as Hashimoto's thyroiditis or Graves' disease, which can lead to hypothyroidism or hyperthyroidism, respectively. Measuring TPOAb helps diagnose and monitor these autoimmune thyroid disorders.
- Free Thyroxine (fT4): Free Thyroxine (fT4) is the unbound, active form of the thyroid hormone thyroxine in the bloodstream. It's crucial for assessing thyroid function because it directly reflects the amount of hormone available to regulate metabolism, growth, and energy levels. Measuring fT4 helps diagnose and monitor conditions like hyperthyroidism (too much) or hypothyroidism (too little) thyroid hormone.
How to prepare
Avoid taking Biotin (Vitamin B7) supplements for 72 hours prior to collection. It is recommended to collect your sample in the morning before eating.
Frequently asked questions
How accurate is a finger-prick test compared to a doctor's blood draw?
Studies show high correlation (over 95%) between DBS (finger-prick) and traditional venous serum draws for TSH and FT4. GetTested uses CLIA-certified labs to maintain laboratory-grade precision and reliability for every at home thyroid kit.
Do I need to stop taking Biotin before the test?
Biotin (Vitamin B7) can cause 'false normals' or skewed results in many thyroid assays. We recommend stopping biotin supplements for at least 72 hours before collecting your sample for this TSH and T4 test kit.
Does this test check for Hashimoto’s?
This test includes TPO antibodies (thyroid peroxidase antibodies), which are commonly evaluated when exploring autoimmune factors that may affect the thyroid. Elevated levels may be associated with conditions such as Hashimoto’s, but results should be interpreted in context.
Can I use these results to adjust my medication?
While our reports are clinical-grade, you should always consult your physician before changing any medications.
Customer reviews
4.6/5 (5)
- 5/5 — Exactly what I needed to track my TPO levels between doctor visits.
- 5/5 — Very convenient way to check TSH and T4 without a lab visit.
- 4/5 — Easy to use kit and the dashboard results are easy to read.
- 5/5 — Super fast turnaround and the instructions were very clear.
- 4/5 — Glad it included the TPO antibodies because my doctor wouldn't order them. The finger prick was a bit fussy but the results came back in two days.