NUR 254 ARDS 1

NUR 254 ARDS 1 1. Type 1 Acute Respiratory Failure Answer Hypoxemic 2. Type 2 Acute Respiratory Failure Answer Hypercapnic 3. Hypoxemic respiratory failure (T1) is characterized by... Answer PaO2 <60 mmHg despite increased inspired O2 with a normal or low PaCO2. 4. Hypercapnic respiratory failure (T2) is characterized by... Answer respiratory acidosis, PaCO2 > 50 mmHg, and pH <7.35... hypoxemia may or may not be present 5. Risk Factors for acute resp. failure Answer - Impaired Ventilation (Hypoventilation) - Ventilation Perfusion Mismatch - Impaired Diffusion (Alveolar) 6. RF for acute resp. failure Answer Impaired ventilation (hypoventilation) causes - Airway obstruction -Resp muscle weakness/paralysis, sometimes caused by myasthenia gravis - Chest-wall injury -Anesthesia - opioid administration