A patient appears in a clinic complaining of chronic fatigue and unusual sensitivity to cold.He also has a lump in his neck near his larynx.Blood tests show he has low levels of TH in his plasma.Which of the following is the most likely diagnosis?
A)Primary hyperthyroidism
B)Secondary hyperthyroidism
C)Secondary hypothyroidism
D)Insufficient secretion of TRH
E)Insufficient iodine in the patient's diet

Question

Quizplus · Accepted Answer

The symptoms and low levels of thyroid hormone (TH) suggest hypothyroidism. A common cause of hypothyroidism is insufficient iodine in the diet, which leads to low TH production and can cause a goiter (lump in the neck).

A Patient Appears in a Clinic Complaining of Chronic Fatigue