The normal range of TSH for most adults, as of 2016 is between 0.4 and 4.0µU/L (per the American Thyroid Association and Okosieme, Gilbert, Abraham et al., 2016). Prior to this, many doctors and laboratories used a range of 0.5 and 5.0µU/L, and some doctors still do use this higher range. However, many advocates for good thyroid health say that this range is too high, and the gap should be narrowed to less than 4.0 µU/L. Moreover, some doctors consider a patients age along with their TSH levels, and this may be a determining factor in how the person is treated. Some data suggests that as a person’s age increases, then so the acceptable range of TSH increases also. This is the case primarily for women (and men) over age 50 as, “It has been reported that serum TSH distribution progressively shifts towards higher concentration with age.” (Okosieme, Gilbert, Abraham et al., 2016). But this does not mean that all woman over age 50 who are presenting with a higher TSH level are considered to be in the normal range, because for some people, this higher level is an indicator that they are in fact mildly hypothyroid. Clearly then, this is an area where specialist diagnosis and treatment is
The normal range of TSH for most adults, as of 2016 is between 0.4 and 4.0µU/L (per the American Thyroid Association and Okosieme, Gilbert, Abraham et al., 2016). Prior to this, many doctors and laboratories used a range of 0.5 and 5.0µU/L, and some doctors still do use this higher range. However, many advocates for good thyroid health say that this range is too high, and the gap should be narrowed to less than 4.0 µU/L. Moreover, some doctors consider a patients age along with their TSH levels, and this may be a determining factor in how the person is treated. Some data suggests that as a person’s age increases, then so the acceptable range of TSH increases also. This is the case primarily for women (and men) over age 50 as, “It has been reported that serum TSH distribution progressively shifts towards higher concentration with age.” (Okosieme, Gilbert, Abraham et al., 2016). But this does not mean that all woman over age 50 who are presenting with a higher TSH level are considered to be in the normal range, because for some people, this higher level is an indicator that they are in fact mildly hypothyroid. Clearly then, this is an area where specialist diagnosis and treatment is