The Nurse Is Caring for a Client Who Has Been

The nurse is caring for a client who has been admitted with a severe crushing injury after an industrial accident. Which of the following laboratory results is most important to report to the health care provider?

A) Serum creatinine level 190 mcmol/L
B) Serum potassium level 6.5 mmol/L
C) White blood cell count 11.5 * 10⁹/L
D) Blood urea nitrogen (BUN) 18 mmol/L