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Thyroid Testing

Testing for thyroid disease typically requires blood tests that are widely used and readily available. Some blood tests that are administered to test your thyroid functions include TSH tests, T3 and T4 tests, TSI tests, and antithyroid antibody tests.

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What is Thyroid Testing?

Introduction to Thyroid Testing in Sacramento

The thyroid is one of the endocrine glands located in the back of your neck, and it is responsible for making hormones that control the rate of activities that help your body function properly. If something is off with your thyroid gland, it can affect how fast you burn calories as well as how fast your heart beats. This can lead to unexplained weight loss or weight gain, and it can affect how you function in your everyday life.

Tests for thyroid issues are used as means to check on how well your thyroid is functioning, and testing determines whether you are functioning normally or if you have one of two thyroid diseases: hyperthyroidism and hypothyroidism. Hyperthyroidism is when the thyroid gland is producing an excess of hormones, and hypothyroidism is when it is not producing enough.

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Different Kind of Thyroid Tests

TSH Tests

TSH tests are the most accurate measure of thyroid function and are the best initial test. TSH tests can serve as an early warning before the thyroid function becomes too low or too high. A high TSH level indicates potential hypothyroidism and a low TSH level may indicate hyperthyroidism.   

T3 & T4 Tests

T3 tests are often used to test for and diagnose hyperthyroidism and can determine the severity of the case. Those with an above-average level of T3 will be diagnosed with hyperthyroidism. T4 is the main form of thyroid hormone that is found in the blood. An elevated TSH and a low T4 indicate hypothyroidism.


TSI testing measures the thyroid-stimulating immunoglobulin. High levels of TSI found in the flood can indicate Graves’ disease, which is an auto-immune disease that affects the thyroid gland and can lead to the development of other serious autoimmune diseases such as type 1 diabetes or Addison’s disease. 

Antithyroid Antibody Test

Two common antibodies are the thyroglobulin antibody and the thyroid peroxidase antibody. Testing the levels of the thyroid antibodies can help diagnose the cause of a thyroid issue. This test is helpful in the initial diagnosis, and if problems are detected this test should be followed by the T3 and T4 tests to determine the severity of the thyroid dysfunction.

Non-blood tests used to diagnose thyroid disease include imaging tests like CT scans, ultrasound, and nuclear medicine tests. One of the nuclear medicine tests is the radioactive iodine uptake tests, and this can be determined by a patient swallowing a small amount of iodine, which is radioactive. The radioactivity allows your doctor to track where the iodine goes, and by measuring the amount of radioactivity that is taken up by the thyroid gland, this can help determine whether the gland is functioning properly.

CRC Labs provide testing for thyroid issues. Our thyroid testing in Sacramento is available through our healthcare providers as well as with easy-to-use at-home thyroid test kits.   

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Signs You Need to Get a Test for Thyroid Issues

There are several signs to look out for when determining whether you need to test for thyroid issues. The first sign or symptom of potential thyroid disease is changing in your energy or mood. Anxiety, insomnia, irritability, and restlessness could all be signs of hyperthyroidism. The opposite of this would be if you are experiencing symptoms of depression, lack of energy, and fatigue, these could be signs of hypothyroidism. 

The biggest sign that something might be off with your thyroid is weight fluctuation. If you find that you are consuming the same number of calories and are undergoing the same amount of activity, but you are still experiencing weight gain, this can be a sign of hypothyroidism. On the other hand, if you are experiencing unexplained weight loss, this is a sign of hyperthyroidism.

Another symptom of thyroid disease can be temperature intolerance. Those with hyperthyroidism may experience heat sensitivity, while those with hypothyroidism have difficulty responding to cold weather no matter how many layers they put on.

Changes in bowel habits are another sign that you may have thyroid issues. Constipation is a symptom of hypothyroidism and more frequent trips to the bathroom and looser stools can be associated with hyperthyroidism.

Lastly, menstrual irregularities can be a symptom of thyroid disease. Both hyper and hypothyroidism can cause irregularities in menstrual cycles, interrupting the normal flow.

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Trusted Thyroid Testing in California & Beyond

Issues That Could Show Up in Thyroid Blood Tests

Tests for thyroid issues are used to determine whether patients are experiencing abnormal levels of functionality within their thyroid gland. The thyroid gland is responsible for hormone creation and having abnormalities in your thyroid functions can throw off your system, causing unexplained weight fluctuation, menstrual irregularities, temperature intolerance, and mood changes. 

Thyroid blood tests are used to determine whether a patient has thyroid diseases such as hypothyroidism, hyperthyroidism, Graves’ disease, or Hashimoto thyroiditis.

California Recovery Center Labs offers thyroid testing in Sacramento, California. CRC Labs offers both thyroid blood tests to test for thyroid problems, thyroid disease tests, and thyroid test-at-home kits. Our clinical laboratory services are the most cost-effective and least invasive sources of information used in clinical decision-making. It is important to receive testing from a center that offers quality testing, and accurate and timely results determined by healthcare professionals.

Signing up for our lab services in California is simple. Patients can schedule testing services through our website by booking an appointment online, or patients can call us at (916) 566-5856 to schedule with us directly. 

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419 Oak Street, Roseville, California 95678

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CRC Lab’s Reliable Thyroid Test At-Home Kits

CRC Labs offers at-home blood test kits for determining thyroid problems. At-home testing kits are used to determine whether your thyroid is functioning properly, and they are easy to use. People opt for at-home testing to determine whether they have thyroid disease because this saves you a trip to our facilities, and at-home kits are used to promote social distancing for people who are uncomfortable visiting labs or doctors’ offices in person.

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Why Choose CRC Labs for Your
Thyroid Testing in California

At CRC Labs, we understand that over 70% of health care decisions are based on diagnostic test results. Therefore, we are determined to provide high-quality, timely and accurate lab test results for each of our patients. California Recovery Center Labs is located in Sacramento, California. We stress the importance of results-driven conclusions that will offer our patients accurate results as well as the appropriate determination of care needed to improve their condition moving forward.

Our thyroid testing determines whether patients are experiencing hyperthyroidism or hypothyroidism through the use of blood tests and at-home testing kits. Some of the blood tests that we offer include TSH tests, T3 and T4 tests, TSI testing, and Antithyroid Antibody Tests. We believe in the use of new technologies to help improve the productivity levels of our labs by fighting against diseases that are determined through our testing processes. CRC Labs provides safe, fast, and accurate testing for patients to help diagnose their conditions. Our technicians and physicians are constantly working as a unit to provide improvements to our testing services, which includes adding new and different kinds of testing services such as drive-thru testing and analysis of at-home testing kits.

There are many reasons someone would opt for lab testing, including responding to health concerns or worsening, undiagnosed symptoms, monitoring your health, and tracking your overall health conditions. We provide an array of different testing, and we are here to help our patients determine what testing might be best for them. Our goal is to provide patients with impactful, reliable diagnoses by producing accurate, specific information with new-age technologies that help guide our clinical decision-making.

Come visit California Recovery Center Labs to receive testing today. We are here to create a safe, seamless experience for people looking to receive thyroid testing. CRC Labs is located in Sacramento, California, and we look forward to providing you with accurate test results that could help with regulating your condition and helping you feel like your best self again. 

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