Supplemental O2

Question 1

What % FiO2 O2 is delivered in a nasal Cannula with 1L/min

Answer 1

~24%

Question 2

For every 1 L/min increase with a nasal cannula, how much does the % FiO2 increase?

Answer 2

~4%

Question 3

What is the maximum amount of FiO2 that can be delivered with a nasal cannula? How many L/min is this?

Answer 3

~40% FiO2 with 5 L/min

Question 4

What is the % FiO2 you can achieve with a simple face mask?

Answer 4

~40-50% FiO2 at around 5-10 L/min

Question 5

What type of device will give you the highest % FiO2 with supplemental oxygen (low flow)?

Answer 5

Non-rebreather.

~55-100% FiO2 at 10-15 L/min

Question 6

What is the % FiO2 achieved w/ a heated nebulizer mask?

Answer 6

~40% FiO2 with Venturi @ 10 L/min

Question 7

What is the % FiO2 achieved with a heated nebulizer face tent?

Answer 7

~30% FiO2 with Venturi 40% @ 10 L/min

Question 8

What does oxygen flow meter tell you?

Answer 8

L of oxygen delivery and how full the tank is

Question 9

If a patient is on a non-rebreather at rest, what PT intervention can you do?

Answer 9

NOT exercise: there is no way to step up oxygen supply from here
-Focus on other airway clearance

Question 10

When do you use face tent and what are the downfalls of it?

Answer 10

Use for patients who are unable to tolerate other systems

Inaccurate Fi02 measurement

Question 11

Venturi mask is a ___ flow device with specific adaptors calibrated to account for ___ and ___.

Answer 11

high flow device; accounts for oxygen and RA

Question 12

With high flow rates of 02 or prolonged 02 use, airways gets dry. To counter, you can apply _____.

Answer 12

heated humidification

Question 13

What is the purpose of an 02 contrater?

Answer 13

turn RA into higher proportion of oxygen

Question 14

When is high flow oxygen indicated?

Answer 14

patients with chronic hypoxia, increased WOB, and hypoventilation (hypercarbia)

Question 15

High flow oxygen delivers increased Fi02 at rates of ____ L/min via nasal cannula or trach mask.

Answer 15

40-50

Question 16

High flow oxygen reduces need for intubation or ____ in many patients in acute respiratory failure.

Answer 16

BiPAP

Question 17

What are the benefits of high flow oxygen?

Answer 17

1. dec oxygen dilution
2. reduce respiratory dead space
3. generate positive airway pressure (b/c expiratory resistance generated by cont. high flow)

Question 18

A directly inserted tracheal 02 delivery for chronic supplemental dependency is called:

Answer 18

scoop transtracheal 02

“stoma”

Question 19

Who should get a face tent?

Answer 19

People who are claustrophobic

Question 20

Why would you give humidified air?

Answer 20

For patients who are very dry or have secretions

Question 21

What is high flow O2?

Answer 21

Method of delivering increased FiO2 at rates of 40-50 L/min via nasal cannula or trach mask

Question 22

Who is high flow O2 indicated for?

Answer 22

patients with chronic hypoxia, increased work of breathing and hypoventilation(hypercarbia) as well as acute respiratory failure

Question 23

High flow O2 could be used to prevent people from what?

Answer 23

Being intubated or put on a BiPAP

Question 24

Benefits of High flow?

Answer 24

decrease O2 dilution
reduce respiratory dead space
generate some positive airway pressure (b/c of expiratory resistance generated by continuous high flow)