Therapeutic Procedures

Question 0

Duration of Flow:

Answer 0

Duration (in minutes) = gauge pressure (psi) x tank factor/ liter flow

Question 1

To approximate FiO2 with a nasal cannula : For every 1 L/min there is an Increase in flow rate. FiO2 increases by 4%

Answer 1

20 + (4 x liter flow) = approximate FiO2

Question 2

Tank Factors

Answer 2

E cylinder = 0.28L/psi (0.3)

H cylinder = 3.14L/psi (3.0)

Question 3

Air - Oxygen Entertainment Ratios

Answer 3

FiO2-rate-factor (air + O2)
24-25:1-26
28-10:1-11
32-6:1-7
35-4.6:1-5.6
36-4:1-5
40-3:1-4
60-1:1-2
70-0.6:1-1.6
100-0:1-1

Question 4

Total Flow

Answer 4

Factor x liter flow