A client tells the nurse about experiencing symptoms of a hypoglycemic insulin reaction. Which action should the nurse take FIRST?

A. Give the client juice or hard candy immediately: While giving juice or hard candy is an appropriate treatment for hypoglycemia, assessing the blood glucose level first is crucial to confirm that the symptoms are indeed due to low blood sugar. B. Call the health care provider: While it's important to notify the healthcare provider if the situation worsens or if there's a concern about the client's safety, the first priority is to assess the blood glucose level and take immediate action to treat the hypoglycemia. C. Have the client lie down and see if symptoms subside: Lying down does not address the underlying cause of hypoglycemia. The client may need glucose to raise their blood sugar levels, so this is not the most effective first action. D. Assess the blood glucose level, and administer glucose in the most appropriate form: Assessing the blood glucose level will confirm whether the symptoms are indeed due to hypoglycemia, and then the nurse can proceed with administering glucose in the most appropriate form (such as oral glucose, juice, or glucose tablets).