Module 9 - Ventilation

Question 1

When might ventilation be needed?

Answer 1

Airway problems
Pneumothorax
Acute lung injury
Neurological problems
Muscle dysfunction
COPD

Question 2

Explain the difference between negative and positive pressuer ventilation

Answer 2

——Negative
- Negative pressure outisde of the body, negative plural, lower alveolar pressure
Advantage is that people can still eat and talk and that it almost completely mimicks the normal breathing , pressure curve

• —- Positive pressure ventilation
• Usually intubated, has a completely different curve
• Advantage is that it is very effective, also with a pneumothorax
• Disadvantage is that people cannot eat and talk and that people often need sedation

Question 3

Indicate the main components of a ventilator

Answer 3

High pressure oxygen and air from wall suppliers
Gasses are then mized
then the valve system makes sure that gas is delivered
humidifier is added so that the lungs will not be too damaged
Control system regulates the gas delivery

Question 4

Explain the difference between pressure and volume ventilation

Answer 4

Volume ventilation is volume and flow controlled

Pressure ventilation is pressure controlled

Question 5

Which ventilator setting is automaticallu adjusted?

Answer 5

Tidal volume and respiratory rate

Question 6

What is measured continuously?

Answer 6

Target minute volume, weight, height, gender, PEEP-level, maximum pressurelimit, sensitivity of trigger

Question 7

Explain the three types of triggering

Answer 7

• time triggered (mandatory ventilation)
• patient triggered (assisted ventilation)
• pressure or flow triggered

Question 8

Explain control mechanism:

Answer 8

• volume controlled, usually constant flow pressure variable

- pressure controlled, constant pressure, variable volume

Question 9

Explain cycling:

Answer 9

volume, flow, pressure cyclig.

Question 10

What is PEEP

Answer 10

PEEP is positive end-expiratory pressure

PEEP pressure is important because it increases the gas exchange surface of the lungs

Question 11

Name state of the art techniques in mechanical ventilation

Answer 11

Adaptive support ventilation
intellivent
PRICO
triggering systems
smart cuffs