Prescribed amounts of stationary oxygen for daytime use while at rest and nighttime use differ and the average of the two amounts is greater than 4 liters per minute (lpm)
prescribed amounts of stationary oxygen for daytime use while at rest and nighttime use differ and the average of the two amounts is greater than 4 liters per minute (lpm)
Avg sta day/night o2 > 4 lpm
avg sta day/night o2 > 4 lpm