A.氧浓度25%~30%,氧流量1~2升/分,间断给氧
B.氧浓度35%~40%,氧流量2~3升/分,间断给氧
C.氧浓度35%~40%,氧流量2~3升/分,持续给氧
D.氧浓度40%~55%,氧流量3~4升/分,持续给氧
E.氧浓度25%~30%,氧流量1~2升/分,持续给氧
A.肌注呋塞米
B.烦躁时使用镇静剂
C.持续性低流量给氧
D.口服解痉平喘类药物
E.静脉滴注抗生素
A.氧流量为0.5~1L/分,浓度不超过30%
B.氧流量为0.5~1L/分,浓度不超过40%
C.氧流量为0.5~1L/分,浓度不超过50%
D.氧流量为0.5~1L/分,浓度不超过60%