29/11/2023
Thyroid Profile Overview:
A Thyroid Profile is a comprehensive blood test designed to evaluate the function of the thyroid gland, a crucial endocrine organ responsible for regulating metabolism and various bodily functions. This profile typically includes measurements of thyroid-stimulating hormone (TSH), triiodothyronine (T3), and thyroxine (T4) levels.
Components of Thyroid Profile:
Thyroid-Stimulating Hormone (TSH):
TSH is produced by the pituitary gland and stimulates the thyroid to release T3 and T4.
Elevated TSH levels may indicate an underactive thyroid (hypothyroidism), while low levels may suggest an overactive thyroid (hyperthyroidism).
Triiodothyronine (T3):
T3 is one of the thyroid hormones responsible for regulating metabolism.
Abnormal T3 levels may be associated with hyperthyroidism or hypothyroidism.
Thyroxine (T4):
T4 is the primary thyroid hormone produced by the thyroid gland.
Elevated or decreased T4 levels may indicate thyroid dysfunction.
Understanding Thyroid Function:
Normal Function:
In a healthy thyroid, TSH stimulates the thyroid to produce T4 and T3 in balanced amounts, maintaining metabolic equilibrium.
Hypothyroidism:
If the thyroid is underactive, TSH levels rise as the body attempts to stimulate thyroid activity.
T4 and T3 levels may be lower than the normal range, leading to symptoms like fatigue, weight gain, and cold sensitivity.
Hyperthyroidism:
An overactive thyroid results in decreased TSH levels as the body tries to reduce thyroid hormone production.
T4 and T3 levels may be elevated, causing symptoms such as weight loss, anxiety, and heat intolerance.
How to Read Thyroid Reports:
TSH Levels:
Normal range: 0.4 - 4.0 mIU/L.
High TSH: Hypothyroidism.
Low TSH: Hyperthyroidism.
T3 Levels:
Normal range: 80 - 200 ng/dL.
High T3: Hyperthyroidism.
Low T3: Hypothyroidism.
T4 Levels:
Normal range: 4.5 - 11.2 µg/dL.
High T4: Hyperthyroidism.
Low T4: Hypothyroidism.
Interpretation:
Elevated TSH with Low T4 and T3:
Indicates
