A client with a history of type 1 diabetes is admitted to the hospital with community-acquired pneumonia. the client's blood glucose level in the emergency care unit was 576 mg/dl (31.97 mmol/l). the physician orders an i.v. containing normal saline solution, an insulin infusion, and i.v. levofloxacin. the nurse piggybacks the insulin infusion into the normal saline solution. she questions whether she can also piggyback the levofloxacin into the same i.v. line. which health team member should she collaborate with to check the compatibility of these solutions?