Type I respiratory failure – hypoxia:
- CHF: Fluid overload – needs diuresis. Hypoxia improves when fluid in lungs in removed.
- May require CPAP for oxygenation.
- COPD exacerbation: May be accompanied with hypercapnia too. Order ABG to assess CO2 level.
- May need BiPAP.
- Infectious etiologies: PNA – hypoxia improves with infection improving.
- Pleural effusion
- Atelectasis: Encouraged incentive spirometry.
Other causes – consider:
- OSA: Order unattended sleep study – will report API (apnea hypoxia index). Patient will need a formal outpatient sleep study to fully assess for OSA. Patient may need CPAP. Encourage weight loss.
- Pulmonary HTN: Consider in young patient with hypoxia.
- Order Echo to assess.