Diagnosis Of Thyroid Test

The sign and symptoms of thyroid disorder of all varieties would give a clue to the physicians and a provisional diagnosis can be made, however proper screening is necessary to know the intensity and prognosis of the disease.

What Type Of Thyroid Test Does It Have

Blood Tests​

A simple blood tests for thyroid functioning will give lot of information on thyroid functioning.

TSH Test​

The best way to initially test thyroid function is to measure the TSH level in a blood sample. A high TSH level indicates that the thyroid gland is failing because of a problem that is directly affecting the Thyroid, which gives clue on hypothyroidism.

On the other hand, in which the TSH level is low, usually indicates that the person has an overactive thyroid that is producing too much thyroid hormone, which happens in Hyperthyroidism. Occasionally, a low TSH may result from an abnormality in the pituitary gland, which prevents it from making enough TSH to stimulate the thyroid (secondary hypothyroidism). In most healthy individuals, a normal TSH value means that the thyroid is functioning normally.

Grave's Disease​

T4 circulates in the blood in two forms:​

  • T4 bound to proteins that prevent the T4 from entering the various tissues that need Thyroid hormone
  • Free T4, which does enter the various target tissues to exert its effects. The free T4 fraction is the most important to determine how the thyroid is functioning, and tests to measure this are called the Free T4 (FT4). Combining the TSH test with the FT4 accurately determines how the thyroid gland is functioning. The finding of an elevated TSH and low FT4 or FTI indicates primary hypothyroidism due to disease in the thyroid gland. A low TSH and low FT4 indicate hypothyroidism due to a problem involving the pituitary gland. A low TSH with an elevated FT4 is found in individuals.

Test For T3

T3 tests are often useful to diagnosis hyperthyroidism or to determine the severity of the hyperthyroidism. Patients who are hyperthyroid will have an elevated T3 level. In some individuals with a low TSH, only the T3 is elevated and the FT4 is normal.

Thyroid Antibody Test​

The immune system of the body normally protects us from infections. They produce antibodies while fighting with the bacteria and viruses. The antibodies’ can destroy the thyroid gland. In many patients with hypothyroidism or hyperthyroidism, lymphocytes make antibodies against their thyroid that either stimulate or damage the gland. Two common antibodies that cause thyroid problems are directed against thyroid cell proteins: thyroid peroxidase and thyroglobulin.

Measuring levels of thyroid antibodies may help to diagnose the cause of the thyroid problems. For example, positive anti-thyroid peroxidase and/or anti-thyro globulin antibodies in a patient with hypothyroidism make a diagnosis of Hashimoto’s thyroiditis. If the antibodies are positive in a hyperthyroid patient, the most likely diagnosis is autoimmune thyroid disease.​

Ultra Sound​

An ultrasound may be used to assist in determining whether thyroid nodules are cancerous

Radio Active Iodine Uptake​

The Thyroid Hormone T4 contains much iodine; the thyroid gland must pull a large amount of iodine out from the blood stream in order for the gland to make an appropriate amount of T4. Therefore, this activity can be measured by having an individual swallow a small amount of iodine, which is radioactive. . By measuring the amount of radioactivity that is taken up by the thyroid gland we can determine whether the gland is functioning normally. A Thyroid Scan also performed.

Thyroid Fine Needle Biopsy​​

Fine Needle Aspiration Cytology (FNAC) is a simple confirmative diagnostic procedure to rule out the lumps, nodules and cancer. The cells can be studied and the types of proliferation can be determined. Even though most of the lumps are non cancerous, the cytological study would enable a physician to treat well​.

Christine

About the Author

Christine

As a women who has hypothyroidism, I would like to share all of my knowledge to all of you about hypothyroidism and how can you make change of your life.

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