Lecture 3

Question 1

What’s respiratory failure?

Answer 1

Is the inability of the pulmonary system to sustain gas exchange
- provide O2
- remove Co2

Question 2

What are the types of respiratory failure?

Answer 2

Acute (pneumonia, covid,…) and chronic (COPD)

Question 3

Work = what, in lungs?

Answer 3

Work = pressure x volume

Question 4

What’s ventilatory failure?

Answer 4

When the inspiratory demand is higher than the muscles capacity

Question 5

In acture respiratory failure what is the cause of ventilatory failure and gas exchange failure?

Answer 5

Ventilatory failure: pump issue
- showed by hypercapnia
gas exchange failure : lung issue
- showed by hypoxemia

Question 6

Type 1 respiratory failure?

Answer 6

Hypoxemic respiratory failure
Pao2 smaller than 60 mmHg
Non change in paCo2
Acute deterioration in gas exchange

Question 7

type 2 respiratory failure?

Answer 7

Hypercapnic respiratory failure
Pao2 smaller than 60 mm hg
PaCo2 bigger than 50 mmHg
Chronic lung disease, neuromuscular condition, progressive deterioration of type 1 respi failure