Hyperthyroidism can be due to all of the following EXCEPT which one
A)too much TRH
B)lack of iodine
C)too much TSH
D)too much T₄ or T₃

Name: Hyperthyroidism can be due to all of the following EXCEPT which one A)too much TRH B)lack of iodine C)too much TSH D)too much T₄ or T₃
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Question

Quizplus · Accepted Answer

Hyperthyroidism is caused by excessive production of thyroid hormones T₄ and T₃. This can be due to excessive TRH, TSH or T₄/T₃ production. However, lack of iodine leads to hypothyroidism, not hyperthyroidism.

Hyperthyroidism Can Be Due to All of the Following EXCEPT