THS Blood Test – Read your Thyroid Results in 5 minutes

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Gain valuable insights into thyroid health and blood test interpretation to safeguard your well-being with diligence and resolve. Delve into the complexities of thyroid function for informed decisions about your health journey.

Within your neck lies the thyroid gland, a master regulator of metabolism, energy levels, and overall physiological balance.
Its profound influence underscores the critical importance of comprehending its function.

Interpreting THS blood test results accurately is not merely a matter of curiosity but a necessity for early detection and effective management of thyroid disorders.
These results serve as indispensable markers, guiding healthcare decisions and interventions.

Let us delve deeply into the complex realm of thyroid health and the interpretation of blood tests.
Through acquiring a comprehensive understanding of these intricacies, we arm ourselves with the necessary tools to protect our health.

Thyroid function overview

The thyroid, situated in the middle of the neck, is an endocrine gland responsible for producing two hormones: Tetra-iodothyronine (T4) and Triiodothyronine (T3).

These hormone levels are regulated by thyroid-stimulating hormone (TSH), produced by the pituitary gland or hypophysis in the brain.

Essentially, reduced T3 and T4 levels prompt the brain and pituitary gland to increase TSH production, aiding in the rebalancing of hormone levels.
Elevated TSH levels indicate insufficient T3-T4 levels.

Understanding these fundamentals is key to interpreting THS blood test results effectively.

thyroid blood test abnormal

Thyroid blood test

In standard laboratory blood tests, three essential measurements are taken: T3 levels, T4 levels, and TSH levels, to assess thyroid function.

  • T3 hormone levels

Your analysis mentions a T3 level equal to 72.5 nanograms per deciliter.
Besides this evaluation, you will find the biological reference values ​​indicating the expected normal T3 level.

For adults aged 20 to 50, the norm is between 70 and 204 nanograms per deciliter.
Beyond 50 years, they must evolve between 40 and 181 nanograms per deciliter.

Standards for pregnant women follow:

– first quarter: 81 to 190
– in the second quarter: 100 to 260
– in the third quarter: 100 to 260

And finally, you find the standards for children:

– from 1 to 5 years: 100 to 260
– from 5 to 10 years: 90 to 240
– from 10 to 20 years: 80 to 210

  • T4 hormone levels

This time, your test indicates that your T4 level is assessed at 8.3 micrograms per deciliter.

You also find next to the biological reference values:

– For adults, the standard varies between 3.2 and 12.6 micrograms per deciliter.

– For ages,

– 1-12 months: 6.1-14.9
– from 1 to 3 years old: 6.8 to 13.5
– from 3 to 10 years old: 5.5 to 12.8

  • TSH level

Your test indicates a TSH level of 2.65 micro international units per milliliter.

Still next to this result, you will find the biological reference values:

– 21 weeks to 20 years: 0.7 to 6.4
– from 21 to 54 years old: 0.4 to 4.2
– from 55 to 87: 0.7 to 8.9

You also find values ​​for pregnant women:

– first quarter: 0.3 to 4.5
– in the second quarter: 0.5 to 4.6
– in the third quarter: 0.8 to 5.2

  • Your thyroid test results

Your blood test results show that your T3, T4, and TSH levels are completely normal.

thyroid blood test levels

Interpreting thyroid blood test results

Now, moving on to different scenarios, let’s explore various indicators to assess thyroid function abnormalities.

1. Primary hypothyroidism

T3 and T4 levels are insufficient, with a high TSH.
– Commonly seen in primary hypothyroidism, requiring medication as recommended by your physician.

2. Secondary hypothyroidism

T3 and T4 levels are insufficient, but TSH levels are normal.
– Indicates an issue with the pituitary gland, necessitating referral to an endocrinologist for further diagnosis.

3. Subclinical hypothyroidism

T3 and T4 levels are normal, but TSH is high.
– Requires regular monitoring by your physician, with lifestyle changes like increased physical activity and dietary adjustments.

4. Primary hyperthyroidism

T3 and T4 levels are high, accompanied by a low TSH.
– Treatment is necessary for primary hyperthyroidism.

5. Subclinical hyperthyroidism

T3 and T4 levels are normal, yet TSH is low.
– Observation is advised by your physician, with potential treatment based on further evaluation.

Thyroid test results chart


Thyroid Blood Test Results
Rate T3 – T4 TSH rate Diagnosis Processing
Too Low


T3 Less than 70
T4 less than 3.2


TSH greater than 8.9

Primary Hypothyroidism Drugs
Too Low


T3 less than 70
T4 less than 3.2


TSH between 0.4 and 8.9

Secondary Hypothyroidism Endocrinologist


T3 between 70 and 204
T4 between 3.2 and 12.6


TSH greater than 8.9

Subclinical Hypothyroidism Watch


T3 greater than 204
T4 greater than 12.6

Too Low

TSH less than 0.4

Primary Hyperthyroidism Drugs


T3 between 70 and 204
T4 between 3.2 and 12.6

Too Low

TSH less than 0.4

Subclinical Hyperthyroidism Observation

Common diagnoses and treatment options

Here are the common diagnoses and associated treatment options:

  • Primary hypothyroidism is characterized by increased TSH levels, often linked to autoimmune diseases like Hashimoto’s thyroiditis.
  • Secondary hypothyroidism, while rare, occurs when the pituitary gland fails to produce sufficient TSH, requiring specialized care from an endocrinologist.
  • Subclinical hypothyroidism presents mild to moderate thyroid insufficiency, necessitating regular monitoring to track its progression.
  • Primary hyperthyroidism manifests as elevated T3 and T4 hormones and decreased TSH levels, commonly associated with autoimmune conditions like Graves disease or thyroid nodules.
  • Subclinical hyperthyroidism involves low TSH levels without corresponding elevation of T3 or T4 hormones, requiring ongoing monitoring as it may resolve spontaneously, with a small percentage progressing to full hyperthyroidism.

Importance of medical guidance and follow-up care

It is crucial to emphasize that if any abnormalities are detected in thyroid test results, seeking medical advice and follow-up care is paramount.

Thyroid disorders can have significant implications for overall health and well-being if left untreated.
Therefore, if you receive abnormal test results or experience symptoms such as fatigue, weight changes, or changes in mood or energy levels, it is essential to consult with a healthcare professional promptly.
He will provide further evaluation, guidance, and appropriate treatment to manage any thyroid-related issues effectively.

Remember, early detection and intervention can lead to better outcomes and improved quality of life.

thyroid blood test results interpretation

Frequently asked questions about thyroid THS test

Do you need to fast for a thyroid test?

No, fasting is typically not required for thyroid tests. However, it’s essential to follow any specific instructions provided by your healthcare provider or the testing facility.

What is the best time for a thyroid test?

Thyroid tests are often conducted in the morning, as hormone levels can fluctuate throughout the day.
A study has shown that the results differ enormously between a blood test carried out in the morning and in the afternoon.
It even specifies that 50% of thyroid problems are not diagnosed with an afternoon sample.

Can I drink water before a thyroid test?

Yes, drinking water before a thyroid test is generally acceptable and does not typically interfere with the results. However, it’s essential to avoid consuming anything else unless instructed otherwise by your healthcare provider.

Can birth control pills affect thyroid test results?

Birth control pills are unlikely to significantly impact thyroid test results. However, it’s essential to inform your healthcare provider about any medications or supplements you are taking, as certain medications may affect thyroid function or hormone levels.

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Natural health is paramount to me, natural remedies have always been part of my life. Whatever the problem, I make sure to find natural solutions that can often be associated with traditional medicine. Everything I write here allows me to share them with you.

The content of this article is not intended to replace medical advice or any treatment.
Keep in mind that you should contact your doctor or any qualified healthcare professional to determine if you can add a supplement to your treatment or change your diet.

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