What if TSH is high but free T4 is normal?
Subclinical hypothyroidism is diagnosed if the TSH remains elevated and the free T4 remains normal for a period of 3-6 months.
Is TSH level 11 high?
Subclinical hypothyroidism is defined as a thyroid stimulating hormone (TSH) level of 4.6 to 10 mIU/L. A normal TSH level is 0.4 to 4.0 and full-blown hypothyroidism is 10 or higher.
How do you treat high TSH and normal T4?
Standard treatment for hypothyroidism involves daily use of the synthetic thyroid hormone levothyroxine (Levo-T, Synthroid, others). This oral medication restores adequate hormone levels, reversing the signs and symptoms of hypothyroidism.
What’s the difference between hypothyroidism and Hashimoto’s?
Hypothyroidism is a problem with your thyroid gland; Hashimoto’s is a problem with your immune system. In Hashimoto’s– as in all autoimmune diseases– the immune system gets confused and mistakenly attacks a part of your own body, kind of the metabolic equivalent of “friendly fire”.
What are the causes of high TSH?
Hypothyroidism. The pituitary makes TSH to stimulate the production of thyroid hormones.
Is your free T4 really in the normal range?
Typical results in adults for the free T4 test generally range from 0.9 to 2.4 nanograms per deciliter (ng/dL). Like total T4 in adults, free T4 also varies in children according to age.
What does it mean when TSH is high and T3 and T4 are normal?
Typically, low or suppressed TSH combined with high levels of T4 or T3 indicates hyperthyroidism. Abnormally high TSH in conjunction with low T4 is usually a sign of hypothyroidism. TSH is released by the pituitary gland to stimulate and regulate thyroid production of the hormones T3 and T4.
What does a low TSH and high T4 mean?
Hyperthyroidism: A low TSH and high T4 is an indication of over-active thyroid (hyperthyroidism). This should be evaluated further for any potential cause and discuss treatment options with your physician.