Your patient shows signs of restlessness, agitation, and anxiety. One of the first disorders to test for would be Graves' disease, so you order tests of

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Graves' disease is a common cause of hyperthyroidism, which can result in symptoms of restlessness, agitation, and anxiety. Therefore, testing thyroid function through measures of thyroid-stimulating hormone (TSH), free thyroxine (T4), and triiodothyronine (T3) levels is necessary. Testing dopamine levels (A) or blood sugar levels (B) may be helpful in ruling out other potential causes, but they are not specific to Graves' disease. Testing cerebral blood flow (D) is not a standard diagnostic test for Graves' disease.

Your Patient Shows Signs of Restlessness, Agitation, and Anxiety