Run a dexamethasone suppression test.
Cushing's. Cortisol overproduction could interfere with heart rhythm.
Would have fried his kidneys, too. What about Graves? Thyroid function tests were normal.
Would have fried his kidneys, too. What about Graves? Thyroid function tests were normal. [SEP] Cushing's. Cortisol overproduction could interfere with heart rhythm. [SEP] Run a dexamethasone suppression test.