CRITICAL CARE MEDICINE

Question 1

TYPES OF RESPIRATORY FAILURE

Answer 1

I - Acute Hypoxemic Respiratory Failure
(PaO2 <55-60mmHg)
II - Hypercarbic Respiratory Failure (PCO2 >45-50mmHg)
III - from atelectasis, perioperative respiratory failure
IV - from hypoperfusion of respiratory muscles in shock

Question 2

LEVELS OF HYPOXEMIA

Answer 2

ABG paO2

normal 80-100
mild 60-79
moderate 40-59
severe <40

Question 3

ARDS clinical syndrome

Answer 3

Severe dyspnea of rapid onset
Hypoxemia
Diffuse Pulmonary infiltrates

Question 4

ARDS pathology

Answer 4

Diffuse Alveolar Damage

tends to progress into either exudative, proliferative, fibrotic stage

Question 5

ARDS is due to

Answer 5

increased intraalveolar oncotic pressure due to capillary endothelium damage and increased protein concentration inside the alveoli