The nurse is caring for a client with a history of type 2 diabetes mellitus (DM) and hypertension who arrived at the clinic for a scheduled visit. Which finding should the nurse recognize as a possible complication?

B Fasting serum glucose 140 mg/dL (7.77 mmol/L). C Serum creatinine 1.6 mg/dL (141.44 ├é┬Ámol/L). A White blood cell (WBC) 11,000/mm├é┬│ (11 x 10├ó┬ü┬╣/L). D Glycosylated hemoglobin (A1C) 6.9%.