Hyperthyroidism
Hyperthyroidism (overactive thyroid) occurs when your thyroid gland produces too much of the hormone thyroxine. Hyperthyroidism can accelerate your body's metabolism, causing unintentional weight loss and a rapid or irregular heartbeat.
Common Symptoms
- Unintentional weight loss
- Rapid heartbeat (tachycardia)
- Irregular heartbeat (arrhythmia)
- Pounding of your heart (palpitations)
- Increased appetite
- Nervousness, anxiety and irritability
- Tremor
- Sweating
Clinical Sources
- Hyperthyroidism (Overactive Thyroid): Symptoms & TreatmentCleveland Clinic
Diagnostic Lab Tests
Tests commonly used to diagnose or monitor Hyperthyroidism:
Free Triiodothyronine (FT3)
Free T3 measures the unbound, metabolically active form of triiodothyronine. While T4 is p...
Free Triiodothyronine (FT3)
Triiodothyronine (T3) is one of the two major hormones produced by the thyroid gland. Whil...
Thyroid Stimulating Hormone (TSH)
Thyroid Stimulating Hormone (TSH) is a glycoprotein produced by the anterior pituitary gla...
Total Triiodothyronine (T3)
Triiodothyronine (T3) is one of the two major hormones produced by the thyroid gland. Whil...
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