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15 maj 2024 · This thyroid test analyzer will help you understand your TSH, T3, T4, and other thyroid function test results. Select a test and enter your lab value to learn more.
- High and Low TSH Levels
TSH levels higher than 4.5 mU/L usually indicate an...
- High and Low TSH Levels
9 paź 2024 · TSH levels higher than 4.5 mU/L usually indicate an underactive thyroid (hypothyroidism), and low TSH levels—below 0.4 mU/L—indicate an overactive thyroid (hyperthyroidism). However, there are exceptions to these interpretations and variations as to what a "normal" TSH level is.
22 gru 2023 · 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...
3 paź 2023 · For instance, a high TSH and low T4 may suggest Hashimoto’s disease, while a low TSH and high T4 may suggest Graves' disease. Different combinations of values can mean different things, and there is often more than one meaning.
10 gru 2022 · If the results show that TSH is high and T-4 is low, then the diagnosis is hypothyroidism. In some cases, the thyroid hormone T-3 may be measured as well. If the second test shows high TSH but T-4 and T-3 are in the standard range, then the diagnosis is a condition called subclinical hypothyroidism.
5 wrz 2023 · Tests measuring free T4 – either a free T4 (FT4) or free T4 index (FTI) – more accurately reflect how the thyroid gland is functioning when checked with a TSH. The finding of an elevated TSH and low FT4 or FTI indicates primary hypothyroidism due to disease in the thyroid gland.
28 maj 2024 · Thyroid-stimulating hormone (TSH): High TSH levels are a sign of an underactive thyroid (hypothyroidism). They show that the pituitary gland is trying to stimulate the thyroid gland to produce thyroid hormones. Very low TSH levels in the blood may be a sign of an overactive thyroid (hyperthyroidism).
