局麻药中加入肾上腺素的浓度宜为() A.1:20000~1:40000 B.1:
题型:单项选择题 A1型题
问题:
局麻药中加入肾上腺素的浓度宜为()
A.1:20000~1:40000
B.1:2000~1:4000
C.1:50000~1:200000
D.1:2000000~1:4000000
E.1:200~1:400
局麻药中加入肾上腺素的浓度宜为()
A.1:20000~1:40000
B.1:2000~1:4000
C.1:50000~1:200000
D.1:2000000~1:4000000
E.1:200~1:400