What happens if TSH 3rd generation is high?
If your TSH levels are abnormally high, it could mean you have an underactive thyroid, or hypothyroidism. That’s because it indicates your pituitary gland is producing more TSH in an effort to stimulate your thyroid to produce thyroid hormone, according to the Mayo Clinic.
What does high sensitivity TSH mean?
High TSH levels can mean your thyroid is not making enough thyroid hormones, a condition called hypothyroidism. Low TSH levels can mean your thyroid is making too much of the hormones, a condition called hyperthyroidism.
What does TSH 3rd generation mean?
Third-generation thyroid-stimulating hormone (TSH) assays are generally the most sensitive screening tool for primary hypothyroidism. If TSH levels are above the reference range, the next step is to measure free thyroxine (T4) or the free thyroxine index (FTI), which serves as a surrogate of the free hormone level.
What is a high TSH third generation level?
High Levels of TSH TSH levels typically fall between 0.4 and 4.0 milliunits per liter (mU/L), according to the American Thyroid Association. Ranges between laboratories will vary with the upper limit generally being between 4 to 5. If your level is higher than this, chances are you have an underactive thyroid.
Can high TSH cause weight gain?
In one of the studies that had data for a single point in time, blood TSH levels were related to waist size and the ratio of waist to height sizes. For example, high blood TSH levels in this study (indicating a more underactive thyroid gland) were related to more weight gain.
What causes high TSH 3rd generation?
Obesity and metabolic damage: Obesity, weight gain, and metabolic damage may all potentially increase your TSH level and lead to hypothyroidism. Women with polycystic ovarian disease are at special risk. Stress and increased cortisol: A high TSH level may also be due to stress and an increased cortisol level.
What is TSH 3rd Generation normal range?
TSH normal values are 0.5 to 5.0 mIU/L. Pregnancy, a history of thyroid cancer, history of pituitary gland disease, and older age are some situations when TSH is optimally maintained in different range as guided by an endocrinologist. FT4 normal values are 0.7 to 1.9ng/dL.
Is high TSH harmful?
Slightly elevated TSH levels are usually detected by accident during a routine examination. But taken on their own they don’t pose any health risk.