Mechanical ventilation Flashcards Preview

PHTH 564 - ICU > Mechanical ventilation > Flashcards

Flashcards in Mechanical ventilation Deck (68)
Loading flashcards...
1

4 clinical conditions leading to mechanical ventilation?

1. depressed resp drive
2. excessive ventilator workload
3. failure of ventilatory pump
4. impending resp failure

2

Type I resp failure = decreased ____

PaO2

3

Type II resp failure = increase ____ and decreased _____

PaCO2; PaO2

4

2 types of mechanical ventilation?

1. positive pressure
2. negative pressure

5

Pt is ________ in negative pressure ventilation

immobilized

6

In negative pressure ventilation, ________ _____ is applied to the outside of the chest wall

subatmospheric pressure

7

In negative pressure ventilation, chest wall _____ and air flows into lungs, closer to normal lung physiology

expands

8

In + pressure ventilation, pressurized air is _____ into the lungs

pushed

9

2 methods of + pressure ventilation?

1. IPPV
2. NIPPV/ NIV

10

Mechanical ventilation _____ and ______ effects require monitoring

pulmonary; hemodynamic

11

5 pulmonary effects due to mechanical ventilation requiring monitoring?

1. increased V/Q and dead space/ tidal volume ratio
2. air trapping
3. barotrauma
4. pneumothorax / subcutaneous emphysema
5. resp distress

12

4 hemodynamic effects due to mechanical ventilation requiring monitoring?

1. decreased venous return
2. decreased CO
3. decreased BP
4. decreased renal perfusion

13

Does prophylactic chest physio decrease incidence of ventilator associated pneumonia (VAP)?

NOPE

14

5 methods to reduce incidence of VAP?

1. HOB elevation
2. oral hygiene
3. DVT and peptic ulcer prophylaxis
4. daily sedation vacation
5. reduced frequency of changing vent circuit

15

Less invasive method of ventilation is always preferred over more invasive (T/F)

TRUE

16

6 CI's and precautions to NIC?

1. facial trauma
2. obstruction to upper airway
3. hemodynamic instability and multiple organ failure
4. decreased LOC
5. undrained pneumothorax
6. high risk of aspiration and vomiting

17

4 non invasive patient interfaces?

1. face mask
2. nasal mask
3. nasal cannula
4. full face mask

18

3 invasive patient interfaces?

1. oral endotracheal tube
2. nasal endotracheal tube
3. tracheostomy

19

Most patients start with ______ _____ if on NIV

oronasal mask`

20

What is biggest factor in choosing type of NIV?

patient comfort

21

In IPPV, most adults are intubated with a _____ ____ ______ tube

cuffed oral endotracheal

22

Most frequent type of IPPV in infants ?

nasal endotracheal tubes

23

Is pt able to speak with endotracheal tube?

No

24

More sedation is required for tracheostomies than endotracheal tubes (T/F)

FALSE - opposite

25

Endotracheal tubes ____ dead space; tracheostomies _____ dead space

increase; decrease

26

6 control parameters in ventilation?

1. pressure
2. volume
3. RR
4. pressure support
5. PEEP
6. FiO2

27

You can only control pressure OR volume, not both (T/F)

TRUE

28

By controlling pressure and leaving volume variable, you risk ______ and ______

derecruitment; atelectasis

29

By controlling volume and leaving pressure variable, you risk ______

barotrauma

30

RR = ?

set rate + pt rate