A nurse observes an older adult client with diabetes experiencing tremors and confusion. What action should the nurse take?

The correct answer is A: Monitor the client's blood glucose level. Tremors and confusion in a client with diabetes could indicate hypoglycemia. Monitoring blood glucose levels will confirm if the client's symptoms are due to low blood sugar. Providing a full meal (B) may worsen the situation by delaying the increase in blood sugar. Asking the client to rest (C) does not address the underlying cause. Administering insulin immediately (D) without knowing the current blood glucose level can further lower blood sugar levels. Hence, monitoring the blood glucose level is the most appropriate initial action.