Mechanical Ventilation

Question 1

Ventilation

Answer 1

Defined by PaO2

Question 2

Oxygenation

Answer 2

Defined by PaO2 or SpO2

Question 3

What has the largest impact on oxygenation?

Answer 3

FiO2 = % of O2

Question 4

Resistance equation

Answer 4

Resistance = Pressure difference/Flow

Question 5

Compliance equation

Answer 5

Compliance = Volume/Flow

Question 6

Mechanical ventilation

Answer 6

a method of artificial ventilation where mechanical means is used to assist or replace spontaneous breathing provided by a ventilator or by a person

Question 7

Types of Ventilation

Answer 7

Spontaneous
Assisted
Mandatory

Question 8

Spontaneous ventilation

Answer 8

patient determines when and how

Question 9

Assisted ventilation

Answer 9

Patient determines when and ventilator determines how

Question 10

Mandatory ventilation

Answer 10

ventilator determines when and how

Question 11

IPPV

Answer 11

Intermittent Positive Pressure Ventilation

Question 12

IMV

Answer 12

Intermittent Mandatory Ventilation

Question 13

CPAP

Answer 13

Continuous Positive Airway Pressure

Question 14

IPPV: Intermittent Positive Pressure Ventilation

Answer 14

Positive Pressure is maintained only during inspiration (no PEEP)

Question 15

IMV: Intermittent Mandatory Ventilation

Answer 15

Operator sets a predetermined number of positive breath but patient can also breath freely mechanical breaths

Question 16

CPAP: Continuous Positive Airway Pressure

Answer 16

Spontaneous breathing with positive during both inspiratory and expiratory phase

Question 17

PIP: Peak Inspiratory Pressure

Answer 17

Highest Pressure during Inspiration

This pressure inflates the alveoli, opens atelectasis or causes barotrauma

Question 18

PEEP: Positive End Expiratory Pressure

Answer 18

Positive pressure that is maintained during expiration

This pressure keeps the alveoli open

Question 19

Indications for PEEP

Answer 19

Open thorax
Lung Parenchymal disease
Following alveolar recruitment maneuver