Which is the correct initial percentage and time interval to begin N2O-O2 sedation?
A) 5% for one minute
B) 10% for one minute
C) 10% for two minutes
D) 20% for two minutes
B
Health Professions
A) 5% for one minute
B) 10% for one minute
C) 10% for two minutes
D) 20% for two minutes
B