B:1. 5 to 6 lit/min
2: Oxygen analyzer is sed to measure the FiO2.
C
1: The primary goal is to maintain the SpO2 and PaO2 of the patient at the desired level.
2.
a. Increase the oxygen flow rate.
b. Adjust the blender to 40%.
c.Check the blood gas values and SpO2.
d.Reread the analyzer for the FiO2