RESPIRATORY COMPROMISE TYPES*
Respiratory failure occurs when the respiratory system fails to maintain gas exchange, resulting in hypoxia or hypercapnia. It is classified according to blood gases values:
- Type 1 Respiratory Failure (hypoxemic): is associated with damage to lung tissue which prevents adequate oxygenation of the blood. However, the remaining normal lung is still sufficient to excrete carbon dioxide. This results in low oxygen, and normal or low carbon dioxide levels.5 Arterial oxygen pressure (PaO2) is <8 kPa (60 mm Hg) with normal or low arterial carbon dioxide pressure (PaCO2).6,7
- Type 2 Respiratory Failure (hypercapnic): occurs when alveolar ventilation is insufficient to excrete the carbon dioxide being produced. Inadequate ventilation is due to reduced ventilatory effort or inability to overcome increased resistance to ventilation. It affects the lung as a whole, and therefore carbon dioxide accumulates, presenting with PaO2 of <8 kPa (60 mm Hg) or normal, with hypercapnia PaCO2 >6.0kPa (> 50 mm Hg).5,7
*TYPE 1 AND TYPE 2 RESPIRATORY FAILURE: PREVENT, DETECT, INTERVENE From Medtronic. Acessed 2-4-2022.