Hypoxia and normal chest x-ray (CXR)

DDx

  • Asthma
  • Pulmonary embolism
  • Early pneumonia
  • Early interstitial lung disease
  • Early pneumocystis pneumonia (PCP)
  • Shunt, eg, atrial or ventricular septal defect, arteriovenous malformation, atelectasis
  • Pulmonary hypertension
  • Chronic alveolar hypoventilation

There's more to see -- the rest of this topic is available only to subscribers.

Last updated: December 1, 2014