8A: Supplemental O2 Flashcards

1
Q

What are the three mechanical ventilation controls?

A
  1. Volume
  2. Rate
  3. Pressure
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Will a pt with a control mode ventilator be in PT?

A

No because they will likely not be awake

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a control mode ventilator?

A

Total exertional control for rate, depth, and pressure without any participation from the patient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What types of patients will have a control mode ventilator?

A

Sedated or pharmacologically paralyzed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is an assist control mode ventilator?

A

Machine has a set rate but is also response to patient initiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is IMV mode?

A

Intermittent Mandatory Ventilation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Describe IMV mode

A
  • Allows patient to initiate breath
  • Provided support to volume
  • Mandatory breath is delivered at preset rate regardless of pt’s effort
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is SIMV mode?

A

Synchronized Intermittent Mandatory Ventilation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Describe SIMV mode

A
  • Set rate allows for some pt controlled ventilation
  • Stacks ventilation of top of spontaneous effort at set rate
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

When is the mandatory breath initiated with SIMV mode?

A

Initiated by the pt’s spontaneous inspiratory effort

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What triggers assisted ventilation in assist mode?

A

Pt’s spontaneous effort

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Does assist mode have a set rate?

A

No

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is PSV mode?

A

Pressure Support Ventilation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Describe PSV mode

A

Every time that the pt starts a breath, it will put extra pressure to get to level

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is PEEP?

A

Positive End-Expiratory Pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When will a pt need PEEP?

A

They are breathing on their own but have early airway closure so there is not enough time for gas exchange

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What does PEEP provide?

A

A treshold-like pressured that is applied at the end of expiration to maintain higher than atmospheric pressure in the airways

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the result of PEEP?

A

Delays early airway closure and keeps alveoli open

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is IPPB?

A

Intermittent Positive Pressure Breathing

20
Q

Describe IPPB

A

Intermittently interjects positive pressure into the tubing to provide slight increase in time for gas exchange

21
Q

What is inspiratory hold?

A

Present pressure or predetermined volume is reached and triggers the hold

22
Q

What are the effects of inspiratory hold?

A

Allows for collateral ventilation, encourages even ventilation

23
Q

What is a CPAP?

A

Continuous Positive Airway Pressure

24
Q

What does CPAP maintain?

A

Positive pressure in the airway at all times, basically just continuous PEEP

25
What are the results of CPAP?
Assists in preventing early airway closure in pt's with small airway disease
26
What is an incentive spirometer?
Visual feedback to assist in deep breathing exercises used when voluntary effort is below 60% of premorbid state
27
What does an incentive spirometer provide?
Quantitative goal for increasing inspiration
28
What are types of oxygen masks?
- Aerosol - Venturi or veni-mask - Face tent
29
What are whiskers?
Mask modification of adding tubes to the ventilation holes to maximize high concentration O2
30
Why should masks have humidity added to them?
Because of the dryness of high concentrations of straight O2
31
What level is considered a high flow rate?
> 40% O2
32
When is the use of a high flow rate considered?
When individuals are in acute respiratory distress
33
Describe high flow rate O2 delivery
Always humidified and can be delivered through intubation when other assist is either anticipated or required
34
What modification is made to a high flow oxygen delivery for a COVID patient?
Will not have humidity added because it would increase the transmission
35
What should TV and RR be for the use of low flow O2?
TV: 300-700 mL RR: < 25
36
What levels of oxygen (L/min) are considered to be low flow rates?
< 4 L/min
37
What is the % of O with a 1L/min flow rate?
24%
38
What is the % of O with a 2L/min flow rate?
28%
39
What is the % of O with a 3L/min flow rate?
32%
40
What is the % of O with a 4L/min flow rate?
36%
41
What level of oxygen is delivered with a nasal cannula (NC)?
Usually less than 6L of O2
42
What level of oxygen is delivered with a Venturi or Venti-mask?
25-50% of O2
43
What type of oxygen delivery are BiPAP and CPAP?
Low flow - positive pressures used for sleep apnea
44
What is a tracheostomy collar?
Placed over the pt's tracheostomy opening - type of low flow delivery
45
What % of oxygen is delivered by a tracheostomy collar?
25-60%
46
When is a re-breather mask used?
Acute distress
47
Describe how a re-breather mask works?
Re-breathe the air that they expire because it still has a high concentration of O in it because they are breathing rapidly and do not have good ventilation