Diffuse Alveolar Hemorrhage (DAH)

Etiology

  • Alveolar bleeding assoc w/pulmonary capillaritis
  • Idiopathic d/o related to GPA, EPA, anti-glomerular basement ab, mpa, other connective tissue d/o

Symptoms

  • May have known systemic inflam d/o or DAH can be first manifestation
  • Hemoptysis, SOB, DOE, F, CP
  • Often life threatening

Physical Exam Findings

  • Abnormal Vital Signs
  • Rales/lung consolidation
  • Findings assoc w/primary systemic dz (e.g. scleroderma, RA, polymyositis, SLE, other) if underlying d/o contributing