问题
单项选择题
The nurse is caring for a client who recently underwent a tracheostomy. The first priority when caring for a client with a tracheostomy is （）.
A．helping him communicate.
B．keeping his airway patent.
C．encouraging him to perform activities of daily living.
D．preventing him from developing an infection.
答案
参考答案：B
解析：
Maintaining a patent airway is the most basic and most critical human need. All other interventions are important to the client's well-being, but they aren't as important as having sufficient oxygen to breathe.
是重核裂变
是α衰变
是核裂变