Use the following information to determine the best answer N

Use the following information to determine the best answer. Normal serum levels for T_3, T_4, and TSH are as follows: T_3 90 to 230 ng/dl T_4 5 to 13.5 mcg/dl TSH 15 mlU/L Consider the following laboratory results of thyroid function and TSH levels. Based on these laboratory results, which patient is most likely to have the following destructive tumor of anterior pituitary that destroys TSH secreting cells? Based on these laboratory results, which patient is most likely to have the following proliferative tumor of anterior pituitary cells that produce TSH? Based on these laboratory results, which patient is most likely to have the following Grave\'s disease? Based on these laboratory results, which patient is most likely to have the following goiter due to iodine deficiency? The hypothalamus

Solution

89.Patient C is likely to have destructive tumor of anterior pituitary that destroys TSH cells.This is because destructive tumor of anterior pituitary destroys the TSH producing cells so that TSH will produced in very less amount that in turn will lead to hypothyroidism or less levels of T3 and T4.Out of all the patients, patient C has below the normal levels of TSH,T3 and T4.

90.Patient A is likely to develop proliferative tumor of anterior pituitary that causes hyperthyroidism in which the levels of TSH increase drastically that in turn increases the level of T3 and T4 levels.Out of all the patients,patient A has highest levels i.e above normal levels of TSH,T3 and T4.

91.Grave\'s diseases causes an increased level of T3 and T4 and low TSH levels.From all the patients, patient B is likely to have Grave\'s disease as his T3 and T4 levels are more than normal and TSH level is below normal.

92.In iodine deficiency,the levels of T3 and T4 is less.So, TSH is secreted more and its level increases.Out of all patients, patient D shows elevated levels of TSH above normal while T3 and T4 levels are below normal.So, patient D will have iodine deficiency.