A nurse is caring for four clients on a medical-surgical unit. Which client should the nurse assess first?

D A client post-cholecystectomy requesting pain medication for a pain score of 7/10 on the Numerical Rating Scale. A A client with a blood glucose of 250 mg/dL [70ÔÇô100 mg/dL, 4.0ÔÇô5.6 mmol/L] who is requesting insulin coverage. C A client with pneumonia reporting shortness of breath after ambulating. B A client post-thyroidectomy with a hoarse voice and difficulty speaking.