You are caring for a new client that got admitted to the unit for abdominal pain. The client takes levothyroxine (Synthroid) at home. The nurse understands that the client is taking levothyroxine (Synthroid) to treat which of the following conditions?

A. Levothyroxine is used to treat hypothyroidism, not hyperglycemia. B. Levothyroxine is a synthetic thyroid hormone used to treat hypothyroidism, a condition where the thyroid does not produce enough thyroid hormone. C. Levothyroxine is not used to treat hypokalemia. Hypokalemia would require potassium supplementation or treatment of the underlying cause. D. Levothyroxine is not used for the treatment of hypoglycemia.