Chapter 9 Airway, Respiration And Artificial Ventilation Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Basic idea of ventilation

A

The moving of air in and out of the lungs.
- required for effective oxygen and respiration

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

Inhalation process

A

Inhalation- active part of ventilation. Diaphragm and intercostal muscle contract, intrathoracic pressure decreases, vacuum is created, thorax enlarges, air passes through the upper to the lower airway then to the alveoli

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

Exhalation process

A

Passive; diaphragm and intercostal muscles relax, thorax decreases in size, air is compressed put of lungs, intrathoracic pressure exceeds atmospheric pressure

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

What is Tidal Volume

A

The amount of air inhaled/exhaled in one breath

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

What is hypoxia

A

Inadequate delivery of O2 to the cells

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

Early indications of hypoxia

A

Restlessness, anxiety, irritability, dyspnea, tachycardia

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

Late signs of hypoxia

A

Altered or decreased LOC, severe dyspnea, Cyanosis, bradycardia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

CO2 drive and Hypoxic drive

A

CO2- the body’s primary system for monitoring breathing status; CO2 levels are monitored in the blood and cerebral fluid

Hypoxic- backup to the CO2 drive; monitors O2 levels in plasma

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

What is oxygenation

A

The delivery of O2 to the blood
- ventilation is required but does not insure oxygenation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What percent of O2 is in the air ?
What percent is in expired air?

A

Surrounding air: 21%
Expired air- 16%

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

What is Respiration

A

The gas exchange of O2 and CO2

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

Time frame for brain damage due to lack of O2

A

Begins- 4min
Permanent- 6min
Irrecoverable- 10min

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

Signs of inadequate breathing

A

-abnormal RR
- Nasal Flaring
- paradoxical motion ( flail chest)
- unequal chest rise and fall
- dyspnea
- cyanosis
- agonal respiration ( dying gasps or apnea [no breathing] )

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

What is Auscultation

A

Using a stethoscope to listen to lung sounds

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

What are the points you listen to lungs

A

point to/ look up picture of unsure

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

List 4 different lung sounds and what they indicate

A

Absent/ diminished- indicates little /no air exchange

Wheezing- High pitched sounds usually heard on exhalation (asthma COPD)

Rales- wet/ crackling sounds

Stridor- high pitch sound in the upper airway indicating a partial blockage in the upper airway (neck)