Supplemental O2 Flashcards
What % FiO2 O2 is delivered in a nasal Cannula with 1L/min
~24%
For every 1 L/min increase with a nasal cannula, how much does the % FiO2 increase?
~4%
What is the maximum amount of FiO2 that can be delivered with a nasal cannula? How many L/min is this?
~40% FiO2 with 5 L/min
What is the % FiO2 you can achieve with a simple face mask?
~40-50% FiO2 at around 5-10 L/min
What type of device will give you the highest % FiO2 with supplemental oxygen (low flow)?
Non-rebreather.
~55-100% FiO2 at 10-15 L/min
What is the % FiO2 achieved w/ a heated nebulizer mask?
~40% FiO2 with Venturi @ 10 L/min
What is the % FiO2 achieved with a heated nebulizer face tent?
~30% FiO2 with Venturi 40% @ 10 L/min
What does oxygen flow meter tell you?
L of oxygen delivery and how full the tank is
If a patient is on a non-rebreather at rest, what PT intervention can you do?
NOT exercise: there is no way to step up oxygen supply from here
-Focus on other airway clearance
When do you use face tent and what are the downfalls of it?
Use for patients who are unable to tolerate other systems
Inaccurate Fi02 measurement
Venturi mask is a ___ flow device with specific adaptors calibrated to account for ___ and ___.
high flow device; accounts for oxygen and RA
With high flow rates of 02 or prolonged 02 use, airways gets dry. To counter, you can apply _____.
heated humidification
What is the purpose of an 02 contrater?
turn RA into higher proportion of oxygen
When is high flow oxygen indicated?
patients with chronic hypoxia, increased WOB, and hypoventilation (hypercarbia)
High flow oxygen delivers increased Fi02 at rates of ____ L/min via nasal cannula or trach mask.
40-50
High flow oxygen reduces need for intubation or ____ in many patients in acute respiratory failure.
BiPAP
What are the benefits of high flow oxygen?
- dec oxygen dilution
- reduce respiratory dead space
- generate positive airway pressure (b/c expiratory resistance generated by cont. high flow)
A directly inserted tracheal 02 delivery for chronic supplemental dependency is called:
scoop transtracheal 02
“stoma”
Who should get a face tent?
People who are claustrophobic
Why would you give humidified air?
For patients who are very dry or have secretions
What is high flow O2?
Method of delivering increased FiO2 at rates of 40-50 L/min via nasal cannula or trach mask
Who is high flow O2 indicated for?
patients with chronic hypoxia, increased work of breathing and hypoventilation(hypercarbia) as well as acute respiratory failure
High flow O2 could be used to prevent people from what?
Being intubated or put on a BiPAP
Benefits of High flow?
decrease O2 dilution
reduce respiratory dead space
generate some positive airway pressure (b/c of expiratory resistance generated by continuous high flow)
