Thyroid Stimulating Hormone (TSH)
Thyroid Stimulating Hormone (TSH) is produced by the pituitary gland and regulates the production of thyroid hormones, triiodothyronine (T3) and thyroxine (T4), which are essential for metabolism, energy levels, and overall bodily functions. The TSH Test evaluates the concentration of TSH in the blood to determine thyroid health.
Test details
Sample type
Blood
Time of day
No specific time required
Fasting required
No
Results timeframe
Within 7 days
Preparation
No special preparation required
What's measured in this test
Thyroid-Stimulating Hormone
Regulates thyroid hormone production.
Common reasons for testing
- Evaluating thyroid function – Determines if the thyroid gland is underactive (hypothyroidism) or overactive (hyperthyroidism).
- Monitoring thyroid treatment – Assesses the effectiveness of medication for thyroid disorders.
- Investigating symptoms – Such as fatigue, weight changes, mood alterations, or irregular heart rate, which may be related to thyroid dysfunction.