When you give sedative inhalation for patient to prevent hypoxia u give.. 100% oxygen and zero nitrous oxide



When you give sedative inhalation for patient to prevent hypoxia u give:
A. 95% oxygen and 5% nitrous oxide 
B. 90% oxygen and 10% nitrous oxide 
C. 85% oxygen and 15% nitrous oxide 
D. 100% oxygen and zero nitrous oxide ***