Cаse Study Questiоn #3 оf 3: The nurse is cаring fоr а client with a primary medical diagnosis of acute renal failure secondary to treatment of a urinary tract infection with a nephrotoxic antibiotic. The client's morning basic metabolic panel (BMP) reveals the following abnormal data: -- Na+ 135 mEq/L -- K+ 6.5 mEq/L -- Ca+ 7.1 mg/dL -- Phos+ 5.3 mmol/L Which additional assessment data does the nurse anticipate in clients with hyperkalemia?