Final answer:
Thyroid disorders can be distinguished from non-thyroidal illness through medical history, physical examination, and diagnostic tests. Common diagnostic approaches include blood tests, imaging tests, and biopsy. Consult a healthcare professional for an accurate diagnosis.
Step-by-step explanation:
Thyroid disorders can be distinguished from non-thyroidal illness through a combination of medical history, physical examination, and diagnostic tests. Common diagnostic approaches include blood tests to measure thyroid hormone levels, imaging tests such as thyroid scans or ultrasounds, and fine needle aspiration biopsy to examine thyroid tissue. In non-thyroidal illness, thyroid hormone levels may be abnormal due to the illness itself, while in thyroid disorders, the abnormal hormone levels are independent of the illness. It is important to consult with a healthcare professional for an accurate diagnosis.