Thyroid Test Analyzer: Understand What Your T3, T4, and TSH Results Mean

This thyroid test analyzer helps you interpret common thyroid lab results, including TSH, T3, and T4. Simply enter your test value to learn whether it falls within a low, optimal, or high range, along with clear explanations of what your result may indicate.

The goal of this tool is to help you better understand your thyroid health and support more informed conversations with your healthcare provider.

Resources to Support Your Thyroid Health.

Thyroid disorders are common yet often overlooked or misunderstood. Whether your results fall outside the optimal range or you have been diagnosed with a thyroid condition—such as hypothyroidism, hyperthyroidism, Graves’ disease, or Hashimoto’s thyroiditis—Verywell offers free, evidence-based resources to help you better understand and manage your thyroid health.

Our aim is to empower you with reliable information so you can engage in confident, productive discussions with your doctor.

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You may find the following resources helpful:

• Learn about thyroid disorders and their symptoms
• Discover ways to reduce your risk of thyroid disease
• Download the Thyroid Disease Doctor Discussion Guide

What Do You Need for This Thyroid Test Analysis?

To use the analyzer, you only need:

• The name of the thyroid test
• The numerical value from your lab report

No need to enter units—they are added automatically.

Which Thyroid Tests Can Be Analyzed?

This tool can analyze several commonly ordered thyroid function tests, including:

• Thyroid-Stimulating Hormone (TSH).
• Free Thyroxine (Free T4).
• Free Triiodothyronine (Free T3).

You can analyze one test at a time. Because thyroid hormones interact closely and results can be influenced by many factors, this tool is for informational purposes only. Your doctor is best suited to interpret results in the context of your overall health.

For a complete explanation of each test, download our guide:
Understanding the Different Thyroid Function Tests

Where Can You Find Your Thyroid Test Results?

In most cases, thyroid test results are available within a few days after bloodwork. You can access them by:

• Requesting a copy from your doctor’s office
• Viewing results through an online patient portal provided by your lab or clinic

Your doctor will receive your results even if the test was performed elsewhere and may schedule a follow-up to review them. You can use this analyzer before or after your appointment to better understand your results.

Notiz: Reference ranges may vary between laboratories. The analyzer uses standard adult reference ranges, but you should always refer to the ranges listed on your lab report when available.

What Information Will the Analyzer Provide?

After entering your test details, the analyzer will:

• Indicate whether your result is low, optimal, or high
• Explain what the result may suggest
• Describe why the test is performed and what it measures

Pregnant individuals and those with pituitary disorders or undergoing treatment for thyroid cancer should have results interpreted by a specialist.

How Are Thyroid Test Results Interpreted?

All interpretations are developed by a board-certified physician and align with recommendations from leading thyroid health authorities. While reference ranges and interpretations may vary slightly between laboratories, this tool reflects standard clinical guidance.

This analyzer is intended for educational purposes only and should supplement—not replace—professional medical care.

Is Your Information Private?

Yes. Your privacy is important to us. We do not store your lab values or track which tests you analyze. Only you can view your results, and they cannot be retrieved later. If you wish to keep a record, we recommend printing or saving your analysis.

For more details, please review our Datenschutzrichtlinie.

No. This tool does not provide medical advice or diagnose thyroid conditions. It is for informational purposes only and is not a substitute for professional medical consultation, diagnosis, or treatment.

What Should You Do With Your Results?

Use this analysis to better understand your thyroid health and prepare thoughtful questions for your healthcare provider. Thyroid conditions require a comprehensive evaluation of symptoms, medical history, lifestyle, and multiple test results—something only your doctor can provide.

For additional guidance, consider using a Doctor Discussion Guide, which includes common medical terms and important questions related to symptoms, causes, diagnosis, treatment options, and living well with thyroid disease.