A client with Addison's disease started taking hydrocortisone in a divided daily dose last week. It is most important for the nurse to monitor which serum laboratory value?

Choice A reason: Osmolarity is a measure of the concentration of solutes in the blood. While it can be important in certain contexts, it is not the primary concern when monitoring a client with Addison's disease who is on hydrocortisone therapy.Choice B reason: Platelets are a component of blood involved in clotting. Monitoring platelet count is important in certain conditions, but it is not the primary focus for a client with Addison's disease on hydrocortisone therapy.Choice C reason: Albumin is a protein in the blood that helps maintain osmotic pressure and transport substances. While it is important to monitor albumin levels in some conditions, it is not the primary concern for a client with Addison's disease on hydrocortisone therapy.Choice D reason: Glucose levels are crucial to monitor in clients with Addison's disease on hydrocortisone therapy. Hydrocortisone can affect glucose metabolism, potentially leading to hyperglycemia. Monitoring glucose levels helps ensure that the client's blood sugar remains within a safe range and allows for timely intervention if necessary.