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  2. Thyroid disease in pregnancy - Wikipedia

    en.wikipedia.org/wiki/Thyroid_disease_in_pregnancy

    Subclinical hypothyroidism (SCH) is present when the TSH is high but the T4 level is in the normal range but usually low normal. SCH is the commonest form of hypothyroidism in pregnancy and is usually due to progressive thyroid destruction due to autoimmune thyroid disease. [citation needed]

  3. Postpartum thyroiditis - Wikipedia

    en.wikipedia.org/wiki/Postpartum_thyroiditis

    Usual screening begins with assessing the thyroid stimulating hormone (TSH) level. A suppressed TSH could represent the hyperthyroid phase, but warrants further testing to investigate for possible Graves' disease. [6] A normal TSH with persistent symptoms could represent the shift between phases and requires repeat testing 4–6 weeks later; an ...

  4. Hypothyroidism - Wikipedia

    en.wikipedia.org/wiki/Hypothyroidism

    In pregnancy, subclinical hypothyroidism is defined as a TSH between 2.5 and 10 mIU/L with a normal thyroxine level, while those with TSH above 10 mIU/L are considered to be overtly hypothyroid even if the thyroxine level is normal. [43]

  5. Thyroid-stimulating hormone - Wikipedia

    en.wikipedia.org/wiki/Thyroid-stimulating_hormone

    Thyroid-stimulating hormone (also known as thyrotropin, thyrotropic hormone, or abbreviated TSH) is a pituitary hormone that stimulates the thyroid gland to produce thyroxine (T 4), and then triiodothyronine (T 3) which stimulates the metabolism of almost every tissue in the body. [1]

  6. Thyroid disease - Wikipedia

    en.wikipedia.org/wiki/Thyroid_disease

    TSH levels are determined by a classic negative feedback system in which high levels of T3 and T4 suppress the production of TSH, and low levels of T3 and T4 increase the production of TSH. TSH levels are thus often used by doctors as a screening test, where the first approach is to determine whether TSH is elevated, suppressed, or normal. [25 ...

  7. Maternal hypothyroidism - Wikipedia

    en.wikipedia.org/wiki/Maternal_Hypothyroidism

    Thyroid hormones, T4 and TSH, diffuse across the placenta traveling from the mother to fetus for 10–12 weeks before the fetus’s own thyroid gland can begin synthesizing its own thyroid hormones. [2] The mother continues to supply some T4 to the fetus even after he/she is able to synthesize his/her own.

  8. In these cases, shortness of breath can signal something more serious such as preeclampsia, a high blood pressure disorder that starts after the 20th week of pregnancy.

  9. Euthyroid sick syndrome - Wikipedia

    en.wikipedia.org/wiki/Euthyroid_sick_syndrome

    Stress suppresses TSH, [5] and alterations in thyroid hormone levels may arise in psychiatric illness. In major depressive disorder, an NTIS-like phenotype may be observed, with reduced T3 and increased rT3. T4 may be elevated, and TSH is usually normal, although TSH's normal circadian rhythm may be disrupted. [2]