A friend of yours is diagnosed with hypothyroidism and shows you the results of her most recent blood tests. The level of thyroxine is below normal, but the levels of thyroid-stimulating hormone (TSH) and thyroid-releasing hormone (TRH) are above normal. Whihc of the following is the best explanation for these results?
The TSH receptors in the thyroid are unable to respond to the TSH produced by the pituitary.
the follicle-stimulating hormone (FSH) and the luteinizing hormone (LH) from the anterior pituitary
low blood sugar, pancreatic alpha cells stimulated, glucagon released, breakdown of glycogen in target cells

Option A

Explanation:

The hypothyroidism can be defined as the condition in which the thyroid hormone is not able to produce thyroid hormones.

The thyroid stimulating hormone is produced by the pituitary gland. This hormone functions by regulating the production of the hormones by the thyroid gland.

If there is an unusual amount of the hormones released by the pituitary gland there will be an abnormal amount of the TSH and TRH. The thyroid stimulating hormones cannot respond to the hormone released from the pituitary.

Hence, the correct answer is Option A.

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