A nurse is admitting a client who has diabetic ketoacidosis. Which of the following types of continuous infusions should the nurse initiate?

Rationale: A. 0.45% saline: This is a hypotonic solution and is typically used after initial fluid resuscitation, not as the first continuous infusion. B. Glargine insulin: Glargine is a long-acting insulin given subcutaneously and is not appropriate for continuous IV infusion. In DKA, rapid insulin action is necessary to reduce blood glucose and suppress ketogenesis quickly. C. 0.9% normal saline: The priority in managing Diabetic ketoacidosis is rapid fluid resuscitation due to severe dehydration. The nurse should initiate a continuous infusion of 0.9% normal saline (isotonic solution) first to restore circulating volume and improve perfusion. After initial stabilization, fluids may later be switched to 0.45% saline depending on sodium levels.D. NPH insulin: NPH is an intermediate-acting insulin used for long-term glycemic control, not for acute management of DKA. It is given subcutaneously and has a delayed onset, making it unsuitable for continuous IV infusion.