ARDS

Question 1

ARDS pathophysiology

Answer 1

• Acute lung inflammation
• Diffuse alveolar damage and increased vascular permeability
• Fluid leakage
• Bilateral lung infiltrates
• Hypoxaemia(Pa O2/ FiO2<200)
• Normal left ventricular function
• Respiratory failure often requiring mechanical ventilation

Question 2

The 3 stages in COPD

Answer 2

Exudative stage
Proliferative stage
Fibrotic stage

Question 3

Causes of ARDS

Answer 3

1.sepsis
2.aspiration of gastric contents
3.Severe pneumonia
4.trauma,burn,blast injury
5.inhalation of fumes
6.massive blood transfusion
7.Acute pancreatitis
8.SARS

Question 4

Clinical features of ARDS

Answer 4

Background clinical problem
Worsening tachycardia
Dyspnoea
Increased need for oxygen
Diffuse lung crackles
B/L lung infiltrates

Question 5

DDs of ARDS

Answer 5

cardiogenic pulmonary oedema
Acute interstitial pneumonia

Question 6

Mx of ARDS

Answer 6

Often needs mechanical ventilation
Attention of fluid balance
Avoid complications
Outcome-Increased mortality, Muli- organ failure