To help prevent problems with home O2 therapy, you should have the patient or caregiver check all delivery equipment at least how often?
a. Once a day
b. Once a week
c. Every other day
d. Once a month
Question 2
At 3 to 5 L/min output, a typical molecular sieve O2 concentrator provides O2 concentrations at what level?
a. 65 to 78
b. 78 to 85
c. 85 to 93
d. Greater than 93