Which intervention is most important for the nurse to implement for a client with type 2 diabetes mellitus (DM) who is receiving insulin lispro?

A) Assess for hypoglycemia between meals: While monitoring for hypoglycemia is important, insulin lispro, being a rapid-acting insulin, primarily acts around meal times. Hypoglycemia is most likely to occur around the times when insulin lispro is active, which correlates with meal times rather than between meals. B) Provide meals at the same time this insulin is given: Insulin lispro is a rapid-acting insulin designed to manage blood glucose levels around meal times. Administering insulin lispro immediately before or with meals helps match the insulin peak with the glucose from the meal, minimizing the risk of postprandial hyperglycemia or hypoglycemia. C) Keep an oral liquid or glucose source available: Keeping a glucose source available is a good practice to quickly address hypoglycemia if it occurs. However, the most critical intervention is ensuring that insulin administration aligns with food intake to manage glucose levels effectively. D) Check blood glucose levels every six hours: Checking blood glucose levels every six hours might not capture the fluctuations related to insulin lispro's rapid action. More frequent monitoring around meal times is necessary to adjust doses appropriately and prevent hyperglycemia or hypoglycemia.