What is the nurse’s most important role in caring for a client with a mental health disorder（）

单项选择题The nurse notices that a client’s abdominal wound has eviscerated. Which of the following would the nurse do first（）

A. Notify the client’s physician immediately.
B. Reinsert the protruding viscera into the abdominal cavity.
C. Place the client in reverse Trendelenburg’s position.
D. Cover the wound with sterile saline-moistened dressings.

单项选择题Which of the following laboratory tests is considered the most reliable indicator of renal function（）

A. BUN.
B. Urinalysis.
C. Serum potassium.
D. Serum creatinine.