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9 paź 2024 · Low TSH is a sign of an overactive thyroid, while high TSH is associated with an underactive thyroid. Learn how TSH levels guide treatment.
15 maj 2024 · Once you enter your information, the thyroid function test analyzer will tell you if your result is low, optimal, or high and what that might mean. You’ll also learn a little bit about the test, why it’s done, and what it measures.
High TSH and low T4. Having high TSH and low T4 levels usually indicates hypothyroidism, an underactive thyroid due to a primary thyroid problem. This is a lack of T4 production due to an issue with your thyroid that’s causing your pituitary gland to release excess TSH to try to stimulate your thyroid into making more T4. High TSH and high T4
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.
22 gru 2023 · High TSH levels indicate that a person has an underactive thyroid, meaning it is not producing enough essential hormones. Symptoms of hypothyroidism include fatigue, weight gain, and...
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.
A high level of TSH and a low level of T4 in the blood could mean you have an underactive thyroid. If your test results show raised TSH but normal T4, you may be at risk of developing an underactive thyroid in the future.
