thyroid-tests

Thyroid hormones

Thyroid blood tests measure the thyroid hormone levels in the blood. The commonly measures tests are TSH (Thyroid stimulating hormone), Free T4 ( Free thyroxine) and T3. T3 and Free T4 are secreted by the thyroid. When a patient has hypothyroidism (low thyroid hormone production from the thyroid gland), the T3 and Free T4 reduces viagra pour jeune homme. This will make the pituitary produce more TSH (TSH increases) . Just the opposite happens in hyperthyroidism ( Thyroid producing more hormones).

Sometimes the reduction in T3 and Free T4 is not noticable but the TSH gets elevated a bit and this is called “ SUBCLINICAL HYPOTHYROIDISM” .

Thyroid Autoantibodies

The innate nature to develop a immune response against ones own organs is called AUTOIMMUNITY. Thyroid autoimmunity is measure by two antibodies called Anti TPO antibody ( TPO : thyroid peroxidase) and anti Tg antibody ( Tg: thyroglobulin). People with thyroid autoimmunity are at high chance of develpoing thyroid disease.

Thyroid ultrasound

It is a scanning technique to see the thyroid gland structure. Doctors gain valuable information about the size of the thyroid nodule and its structure. There are certain features that make doctors suspect fluid in the nodule or a cancer.

Thyroid Radionuclide scan

This can be done with radioactive iodine or technitium. This is done to know the fuction of the thyroid nodule. Hot nodules take up the radioactive isotope and shine brightly. Cold nodules don’t take up the isotope and look like voids in an otherwise bright thyroid gland.

FNAC ( Fine needle aspiration cytology)

FNAC , just as the word signifies invloves putting a needle and aspirating the thyroid nodule. Reports may show colloid ( fluid), thyroid cells and blood. From the features of thyroid cells, pathologists can diagnose thyroid cancers like papillary cancers.

Author: Dr. Mathew John (Endocrinologist)
Last modified: February 14, 2017

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