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Thyroid Tests

Thank you for shopping our thyroid tests. A properly functioning thyroid is crucial to healthy living. A cheap blood test can help diagnose thyroid disease and prevent it. A thyroid-stimulating hormone or TSH lab test can help determine whether you have either hyperthyroidism or hypothyroidism, both of which can interfere with your appetite, heart rate, and energy levels. Order a thyroid blood test today and see whether or not your thyroid is operating at an optimal level! Thyroid tests are among the most important health screens a patient can complete, as more than 12% of Americans will develop some form of thyroid condition in their lifetime, and more than 20 million of us are currently living with some variation of thyroid disease. Thyroid tests from Walk-In Lab are some of the most affordable health screens on the market and should be a part of any annual preventive health exam. A number of these tests are also used as thyroid cancer blood tests to monitor the effectiveness of treatment. Order online without insurance or a doctor's order. Feeling tired? Not sleeping well? Gaining or losing weight for no apparent reason? These are just some of the possible side effects of hyper or hypothyroidism. Choose from either blood, urine, or saliva TPO tests from Walk-In Lab to help you determine if your levels are normal. Some panels include a complete blood count (CBC), complete metabolic panel (CMP), and other vital screens that can uncover other, unrelated health issues.

Browse Thyroid Tests Subcategories

Choose One Lab: LABCORP (LC) or QUEST (QD) or ALL

Home Test Kits

Walk-In Lab is contracted with LabCorp (LC) and Quest Diagnostics (QD) for routine lab testing. Please choose LC or QD to complete your order. If you prefer to receive a kit by mail for specimen collection, please see our Home Test Kits. LC and QD tests must be ordered separately.

LabCorp: Online lab testing is prohibited in MA, MD, NY, NJ and RI.

Quest Diagnostics: Online lab testing is prohibited in AZ, NY, NJ and RI.

  • Thyroid-stimulating Hormone (TSH) Blood Test

    The Thyroid-stimulating Hormone (TSH) Blood Test checks thyroid gland function.
  • Thyroid #1 Baseline Blood Test Panel

    The Thyroid #1 Baseline Blood Test Panel evaluates healthy thyroid function and screens for thyroid disorders.
  • Thyroid #2 Essential Blood Test Panel

    The Thyroid #2 Essential Blood Test Panel includes a Thyroid Profile with TSH plus Tri-iodothyronine (T3) Free Serum, and Thyroxine (T4) Free Direct Serum.
  • Thyroxine Free Direct (T4) plus Thyroid-stimulating ...

    The Thyroxine Free Direct (T4) plus Thyroid-stimulating Hormone (TSH) Blood Test Panel evaluates healthy thyroid hormone function and screens for thyroid disorders.
  • Free T3 and Free T4 Blood Test Panel

    Free Tri-iodothyronine (T3) Serum and Thyroxine (T4) Free Direct Serum.
  • Thyroid Peroxidase Antibodies (TPO) Blood Test

    A TPO Blood Test provides a differential diagnosis of hypothyroidism and thyroiditis.
  • Parathyroid Hormone (PTH) Intact Blood Test

    The Parathyroid Hormone (PTH) Intact Blood Test measures the level of PTH in the blood to help determine the cause of abnormal calcium and phosphorous levels that may lead to severe health conditions.
  • Wellness Express Panel Blood Test Plus Complete Bloo...

    A Wellness Express Panel Blood Test Plus includes: Comprehensive Metabolic Panel (CMP-20), Lipid Profile (cholesterol), CBC, Thyroid  Profile with TSH plus Tri-iodothyronine (T3) Free Serum, Thyroxine (T4) Free Direct Serum, and Ferritin.
  • Thyroid #3 Extreme Blood Test Panel

    The Thyroid #3 Extreme Blood Test Panel includes a Thyroid Profile with TSH, Tri-iodothyronine (T3) Free Serum, Thyroxine (T4) Free Direct Serum plus Thyroid Peroxidase (TPO) Antibodies, Thyroid Antithyroglobulin Antibody (TAA).
  • Thyroxine (T4) Free Direct Serum Test

    A T4 Free Direct Serum Test is ordered to help in evaluating thyroid gland function.
  • Thyroid #3 Extreme Blood Test Panel plus Reverse T3

    A Thyroid #3 Extreme Blood Test Panel plus Reverse T3 includes Thyroid Profile with TSH, Tri-iodothyronine (T3) Free Serum, Thyroxine (T4) Free Direct Serum plus Thyroid Peroxidase (TPO) Antibodies, Thyroid Antithyroglobulin Antibody (TAA) and Reverse T3.
  • Thyroid #2 Essential Blood Test Panel plus Reverse T...

    The Thyroid #2 Essential Blood Test Panel plus Reverse T3 includes a Thyroid Profile with TSH plus Tri-iodothyronine (T3) Free Serum, Thyroxine (T4) Free Direct Serum and Reverse T3.
  • Reverse T3 Blood Test, LC/MS/MS

    A Reverse T3 Test evaluates thyroid function and metabolism.
  • Tri-iodothyronine (T3) Free Serum Test

    A Free T3 is ordered to evaluate thyroid function.
  • Thyroid Antibodies Panel Blood Test

    The Thyroid Antibodies Panel Blood Test includes a TPO and TAA.
  • Tri-iodothyronine (T3) Blood Test

    The T3 Blood Test is ordered to help in evaluating thyroid gland function and in the diagnosis of hyperthyroidism.
  • Iodine Blood Test

    An iodine blood test monitors exposure to iodine; evaluate for iodine deficiency disorders (IDDs), excessive iodine intake, or iodine in the workplace.
  • Wellness #2 Essential Blood Test Panel plus T3 Free ...

    A Wellness #2 Essential Blood Test Panel plus T3 Free and T4 Free includes a Complete Metabolic Panel (CMP-14), Lipid Panel With Total Cholesterol:HDL Ratio, Thyroid Panel with Thyroid-stimulating Hormone (TSH), Complete Blood Count (CBC) With Differential and Platelets, Kidney Panel, Liver Panel, Glucose, Fluids and Electrolytes, Mineral and Bone plus T3 Free and T4 Free.
  • Thyroid #4 Comprehensive Blood Test Panel

    The Thyroid #4 Comprehensive Blood Test Panel includes a Thyroid Profile with TSH, Tri-iodothyronine (T3) Free Serum, Thyroxine (T4) Free Direct Serum, Thyroid Peroxidase (TPO) Antibodies, Thyroid Antithyroglobulin Antibody (TAA) plus Reverse T3, Thyroxine-binding Globulin (TBG), Thyroid-stimulating Immunoglobulin (TSI), and Tri-iodothyronine (T3).
  • Parathyroid Hormone (PTH) Blood Test Plus Calcium

    The Parathyroid Hormone (PTH) Blood Test Plus Calcium measures the PTH and calcium levels in the blood to help screen for, diagnose, and monitor various health conditions
  • Calcium Ionized Serum Test

    The Calcium Ionized Serum Test measures ionized calcium levels in the blood to help screen for, diagnose, and monitor various conditions related to the bones, heart, nerves, kidneys, and teeth.
  • Thyroid Antithyroglobulin Antibody (TAA) Blood Test

    A Thyroid Antithyroglobulin Antibody (TAA) Blood Test helps diagnose an autoimmune thyroid disease and separate it from other forms of thyroiditis.
  • Thyroxine (T4) Blood Test

    The Thyroxine Blood Test is a thyroid function test.
  • Thyroid Antibodies Blood Test Panel Plus Reverse T3

    A Thyroid Antibodies Blood Test Panel Plus Reverse T3 measures Thyroid Peroxidase (TPO) Antibodies, Thyroid Antithyroglobulin Antibody (TAA), and Reverse T3 Blood tests.
  • Thyroid-stimulating Immunoglobulin (TSI) Blood Test

    The Thyroid-Stimulating Immunoglobulin (TSI) Blood Test measures TSI levels to help screen for Graves Disease and other thyroid-related disorders.
  • Prealbumin Blood Test

    This Prealbumin Blood Test evaluates protein malnutrition, total parenteral nutrition, and liver dysfunction.
  • Potassium Blood Test, RBC

    The Potassium Blood Test, RBC provides a measurement of intracellular Potassium levels which can indicate deficiency sooner than an ordinary blood test.
  • Thyrotropin Receptor Antibody Blood Test

    A Thyrotropin Receptor Antibody Blood Test is used in the diagnosis of hyperthyroidism and Graves' disease.
  • Glutamic Acid Decarboxylase (GAD) Autoantibody Blood...

    The Glutamic Acid Decarboxylase (GAD) Autoantibody Blood Test detects autoantibodies that target insulin-producing pancreatic cells to help confirm the diagnosis of type 1 diabetes and evaluate the need for insulin treatment.
  • Iodine Urine Test, Random

    An iodine urine test, random monitors exposure to iodine; evaluate for iodine deficiency disorders (IDDs), excessive iodine intake, or iodine in the workplace.
  • Iodine Urine Test, 24-Hour

    An iodine urine test, 24-hour measures urinary iodine, an element essential for thyroid function.
  • Calcitonin Blood Test

    The Calcitonin Blood Test measures the level of hormone calcitonin in the blood
  • Adrenocortex Stress Profile, Saliva - Genova Test Ki...

    The Adrenocortex Stress Profile is a measurement of an individual's response to stress by evaluating bioactive levels of the body's important stress hormones, cortisol and DHEA.
  • Potassium Urine Test, 24-Hour

    A 24-hour Potassium Urine Test is used to detect abnormal concentrations of potassium, including high potassium (hyperkalemia) and low potassium (hypokalemia).
  • Thyroxine-Binding Globulin (TBG) Serum Test

    The TBG Serum Test measures the level of TBG, a protein that moves thyroid hormone throughout your body.
  • Triiodothyronine (T3) Free Blood Test, Dialysis and ...

    The Triiodothyronine (T3) Free Blood Test, Dialysis, and LC/MS-MS measures the amount of Free T3 in a blood sample to help assess thyroid hormone function and screen for thyroid disorders.
  • Calcium:Creatinine Ratio Urine Test, Random

    A random urine calcium-to-creatinine ratio is used to screen for hypercalciuria, as it is found to have a good correlation with 24-hour urine calcium excretion.
  • Fluoride Blood Test

    The fluoride blood test is typically ordered when someone is experiencing symptoms of fluoride exposure especially if they have had contact with chemicals containing fluoride or work in an industry where airborne exposure to fluoride is common.
  • Amino Acids Analysis Plasma Profile - Genova Test Ki...

    The Amino Acids Analysis Plasma Profile measures levels of more than 40 key amino acids in blood. Note: This is a pre-paid shipping test kit that will be mailed and it requires a blood draw. Please Click Here to locate a lab for specimen collection.
  • Female Comprehensive Profile II Saliva and Blood - Z...

    The Female Comprehensive Profile II Saliva and Blood will test cortisol 4 times throughout the day in saliva, and the sex and thyroid hormones are all tested in dried blood spot.  Comprehensive testing allows for the treatment to restore balance and achieve overall wellness.
  • Female Comprehensive Profile I Saliva and Blood - ZR...

    The Comprehensive Female Profile I Saliva and Blood is a combination of ZRT's Salivary Hormone Profile III and the Essential Thyroid Profile and include both saliva and dried blood spot tests.  The profile provides a broad assessment of possible hormonal imbalances because they assess sex, adrenal, and thyroid hormone levels.
  • Thyroxine (T4) Free Blood Test, Dialysis

    The Thyroxine (T4) Free Blood Test, Dialysis, measures the amount of Free T4 in a blood sample to help assess thyroid hormone function and screen for thyroid disorders.
  • Thyroxine (T4), Thyroxine Binding Globulin (TBG) and...

    The Thyroxine (T4), Thyroxine-Binding Globulin (TBG), and T4−TBG Index Blood Test measure the TBG, T4, and T4-TBG index levels in the blood to help screen for thyroid disorders.
  • Toxic & Essential Elements Urine Profile - ZRT Test ...

    Toxic & Essential Elements Urine home test kit is used to evaluate if an individual has too little, or too much, of the essential nutrients iodine and selenium or the trace elements bromine and lithium.  Also, if the individual has been exposed to too much of the toxic elements, arsenic, mercury, and cadmium.
  • Toxic & Essential Elements Blood Spot Profile - ZRT ...

    Toxic & Essential Elements Blood Spot home test kit is used to evaluate if an individual has too little, or too much, of the essential nutrients iodine and selenium or the trace elements bromine and lithium.  Also, if the individual has been exposed to too much of the toxic elements, arsenic, mercury, and cadmium.
  • Parathyroid Hormone-related Peptide (PTH-rP) (Endocr...

    The Parathyroid Hormone-Related Peptide (PTH-RP) Plasma Test measures the PTH-RP hormone levels in the blood to help diagnose hypercalcemia.
  • Cortisol, Free And Cortisone with Creatinine Urine T...

    A Cortisol, Free And Cortisone with Creatinine Urine Test is useful in the detection of Cushing's syndrome when free cortisol concentrations are elevated.
  • Male Comprehensive Profile II Saliva and Blood - ZRT...

    The Male Comprehensive Profile II Saliva and Blood will test cortisol 4 times throughout the day in saliva, and the sex and thyroid hormones are all tested in dried blood spot.  Comprehensive testing allows for the treatment to restore balance and achieve overall wellness.
  • Essential Thyroid Blood Spot Profile - ZRT Test Kit

    The Essential Thyroid Blood Spot Profile can screen for hypothyroidism or hyperthyroidism, monitor dosages for thyroid replacement, and test for autoimmune thyroid disease.
  • Elite Thyroid Blood Spot Profile - ZRT Test Kit

    The Elite Thyroid Blood Spot Profile gives a complete assessment of thyroid health including checking for hypothyroidism or hyperthyroidism, monitor dosages for thyroid replacement, thyroglobulin to address low iodine status, test for autoimmune thyroid disease, and quantify the total T4 produced by the thyroid.
  • Male Comprehensive Profile I Saliva and Blood - ZRT ...

    The Comprehensive Male Profile I Saliva and Blood is a combination of the male version of ZRT's Salivary Hormone Profile III and the Essential Thyroid Profile and include both saliva and dried blood spot tests.  The profile provides a broad assessment of possible hormonal imbalances because they assess sex, adrenal, and thyroid hormone levels.
  • Iodine With Creatinine Ratio Urine Test - 24 Hour

    The iodine with creatinine ratio urine test is used to monitor conditions including iodine-induced hypothyroidism, autoimmune inflammation of the thyroid gland, and hyperthyroidism associated with high iodine intake.
  • Female Blood Spot Profile II - ZRT Test Kit

    The Female Blood Spot Profile II checks the primary female sex hormones and their main binding globulin, and screens adrenal health using morning cortisol in addition to accessing the overall thyroid health.
  • Male Blood Spot Profile II - ZRT Test Kit

    The Male Blood Spot Profile II checks the primary male sex hormones and their main binding globulin, and screens adrenal health using morning cortisol in addition to accessing the overall thyroid health.
  • Elite Athlete Metrics Saliva and Bloodspot Profile -...

    The Elite Athlete Metrics Profile allows identification of hormone imbalances or vitamin D deficiency that can affect performance, increase injury risk, or prevent an athlete from competing at their highest level.

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