TSH influences thyroid hormones that control heart rate, metabolism, sleep, and mood. High TSH levels usually mean the thyroid is underactive, which is called hypothyroidism. Low TSH levels suggest an ...

Q: I had a thyroidectomy a few years ago, and have been taking levothyroxine daily since then. My dose has been stable. While ...

Hyperthyroidism affects TSH levels, causing them to fall below expected ranges. Hyperthyroidism can occur when the thyroid gland in the neck produces too much thyroid hormones, including ...

If you're like most primary care clinicians, your email inbox is flooded with messages from patients with questions about lab results. A common query: Should I be worried about an abnormal value on a ...

Primary hyperthyroidism occurs due to issues within the thyroid gland. Secondary hyperthyroidism is due to the pituitary gland overstimulating the thyroid. To diagnose the type of hyperthyroidism, ...

Earlier this fall, Medscape Medical News spoke to endocrinologists Angela M. Leung, MD, and Karen Tsai, MD, on how to interpret abnormal results of thyroid hormone tests. To address some additional ...

Please provide your email address to receive an email when new articles are posted on . Of adults receiving levothyroxine therapy for hypothyroidism, 43.8% had either low or high TSH levels. TSH ...

Please provide your email address to receive an email when new articles are posted on . Children with ADHD and higher TSH levels are more likely to have hyperactivity behaviors. Higher levels of serum ...

A TSH blood test can help your doctor determine if your thyroid gland is working as it should. In cases of hyperthyroidism, TSH levels usually fall below 0.4 mIU/L, indicating an overactive thyroid.