Question

patient presents with decreased trh, increased tsh, and increased t3. which of the following condition is associated with this pattern?
primary hypothyroidism
primary hyperthyroidism
secondary hypothyroidism
secondary hyperthyroidism

Explanation:

TRH (thyrotropin - releasing hormone) is produced by the hypothalamus, TSH (thyroid - stimulating hormone) by the pituitary, and T3 (triiodothyronine) by the thyroid. In secondary hyperthyroidism, the pituitary gland is over - functioning, leading to increased TSH which in turn stimulates the thyroid to produce more T3. The increased T3 then suppresses TRH production by negative feedback.

Answer:

D. Secondary Hyperthyroidism