Oxygen delivery systems Flashcards
What should be in the oxygen prescription
- flow rate
- duration
- delivery device
- instruction for monitoring
Based on pressure what are the types of oxygen delivery
Ambient pressure
-variable performance
-fixed performance
Positive pressure ventilation
- non invasive(BIPAP, CPAP)
invasive
What are low flow systems
do not provide constate FiO2 and part of tidal volume is provided by room air
for example nasal cannula, simple face mask and rebreather mask
What are high flow systems
Deliver specific and constant percent of oxygen. for example venturi mask
How much oxygen can a nasal cannulae deliver and the flow rate
25-40%
2-6L
how much oxygen can a simple face mask deliver and the flow rate ?
35-50%
6-10L
How much oxygen can a venturi mask deliver and flow rate?
24-60%
flow rate depends on the color of the valve
what is the flow rate of the blue venturi valve
2-4L/min=24%
what is the flow rate of the white venturi valve?
4-6L/min=28%
What is the flow rate of the yellow venturi valve?
8-10L/min=35%
What is the flow rate of the red venturi mask valve?
10-12L/min=40%
What is the flow rate of the green venturi mask valve?
12-15L/min=60%
in which condition do we usually use a venturi mask
COPD
How much oxygen can a non rebreather mask deliver and flow rate?
85-90%
10-15L flow rate
What is the flow rate of the orange venturi mask valve?
4-6L/min=31