(来学网)慢性呼吸衰竭病人一般临床上氧疗的PaO2指征是
  • A.
    (来学网)<60mmHg
  • B.
    (来学网)<50mmHg
  • C.
    (来学网)<70mmHg
  • D.
    (来学网)<90mmHg
  • E.
    (来学网)<80mmHg
正确答案:
A