Thyroid-stimulating hormones (TSH) help regulate your body’s production of thyroid hormone. High TSH levels mean your thyroid is underperforming, while low levels mean you’re producing too much. Your ...

The thyroid-stimulating hormone (TSH) test measures the amount of TSH in the blood to convey how well a person’s thyroid functions. Normal levels are typically 0.4 to 4.0 milliunits per liter (mU/L) ...

Medically reviewed by Kelly Wood, MD Key Takeaways Even if TSH levels are normal, people can feel symptoms of ...

Patients treated for overt hypothyroidism with the standard replacement therapy levothyroxine (LT4) often continue to show abnormal cholesterol levels despite normalization of thyroid stimulating ...

The conventional laboratory approach to verifying an analyte concentration such as dilution may not always detect an interference problem. Since methods vary in their susceptibility to most ...

Dear Dr. Roach: A few months ago, I had routine follow-up thyroid tests, and my results were normal except for a slightly high free T4 level. My doctor decreased my medication dose to 137 mcg from 150 ...

Dear Dr. Roach: I am an 82-year-old woman in good health. I recently had labwork that showed my TSH level is 6.14. I was told that I would need thyroid medicine because eventually I would feel tired ...

We were unable to process your request. Please try again later. If you continue to have this issue please contact [email protected]. Back to Healio For patients taking long-term thyroxine ...

A new study finds that not only low but also high maternal thyroid hormone levels during early pregnancy may significantly lower the infant's IQ later in childhood. The study results suggest that the ...