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Flashcards in Respiratory Failure Deck (6)
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1
Q

Define Respiratory Failure

A

Syndrome
OF inadequate Gas Exchange
Due to dysfunction of respiratory System

2
Q

Types of Respiratory failure

A

Type 1= Hypoxaemic
More common than
Type 2= Hypercapnic

3 & 4 (iatrogenic RF in surgery and shock)

3
Q

DEFINING Type 1 R Failure

A

PaO2 < 8

Ventilation perfusion mismatch (V/Q)
Increased shunt fraction (Qs/Qt)
refractory to supplimental 02 therapy (unless caused by low ambient o2)

4
Q

DEFINING Type 2 R Failure

A

PaCO2 >6 (often hypoxic as well)

Failure to breath off / exhange CO2
Decreased alveolar minute ventilation (V2)

5
Q

Causes Type 1 Resp Failure

A
ventilation-perfusion mismatch
Pneumonia
PE
Pulmonary Oedema
Atelectasis
Pulmonary Fibrosis
Pulmonary Hypertension
Aspiration
Blood- heamothorax
Pus- empyema
6
Q

Causes Type 2 Resp Failure

A
Ventilation Failure
Obesity +++
Pneumothorax
COPD
Asthma
Central Hypo-ventilation
Neuropathy
Myopathy
MSK eg Kyphoscoliosis