Tsh uppgift Hypothyroidism is one of the most common endocrine disorders, with a greater burden of disease in women and the elderly.1 A 20 year follow up survey in the United Kingdom found the annual incidence of primary hypothyroidism to be per in women and per in men.2 A cross sectional Australian survey found the prevalence of overt hypothyroidism to be per 1 lågt tsh högt t4 2 Measuring thyroid stimulating hormone is the first step. If it is abnormal, free thyroxine should be measured. A raised concentration of thyroid stimulating hormone with a low concentration of free thyroxine suggests hypothyroidism. 3 lågt tsh-värde symtom 4 Thyroid stimulating hormone (TSH) should be checked: when screening for thyroid hormone excess or deficiency on the basis of symptoms or risk factors when goitre or thyroid nodules are identified. 5 Weight loss or gain, commencement or cessation of hormonal contraception/hormonal replacement, pregnancy or intercurrent illness can all change requirements for thyroid hormone and should prompt a review of TSH levels.8The utility of universal testing of TSH in the first trimester of pregnancy has not been established and is best limited to pati. 6 TSH level. TSH levels of 60 years of age In one study, patients aged >65 years with serum TSH levels. 7 högt tsh-värde symtom 8 Tyreoideastimulerande hormon, även kallat tyreotropin och TSH, är ett hormon som produceras av hypofysen, ett litet organ under hjärnan. 9 Tyreoideastimulerande hormon, TSH, även tyreotropin, sköldkörtelstimulerande hormon, är ett peptidhormon som bildas i hypofysen, vars funktion är att. 10