The nurse is caring for a group of clients who have been prescribed insulin. For which client should the nurse withhold the prescribed dose of insulin?

A. A client with type 2 diabetes with a blood glucose of 142: This blood glucose level is mildly elevated and generally within a range where insulin administration is safe and appropriate for glycemic control. Withholding insulin is not indicated unless hypoglycemia is present. B. A client with type 1 diabetes with a blood glucose of 570: This is a critically high blood glucose level, indicating hyperglycemia or possible diabetic ketoacidosis. Administering insulin is essential to reduce blood glucose and prevent further complications. C. A client with type 1 diabetes with a blood glucose of 56: Hypoglycemia is present, defined as a blood glucose below 70 mg/dL. Administering insulin in this situation could worsen hypoglycemia, potentially causing seizures, loss of consciousness, or death, so the dose should be withheld until glucose is corrected. D. A client with type 1 diabetes with a blood glucose of 165: This blood glucose level is above normal but not acutely dangerous. Administering the prescribed insulin is appropriate to maintain glycemic control and prevent complications associated with hyperglycemia.