... disposition, 37 5pathophysiology, 37 4Dyshemoglobinemiasmethemoglobinemia, 35 8 36 0sulfhemoglobinemia, 35 8 36 0Dysphagia, 135 – 137 Dyspneaclinical features, 1 13 diagnosis and differential, 1 13 emergency ... 260clinical features, 30 3diagnosis and differential, 30 3 emergency department care and disposition, 30 3 30 4pathophysiology, 30 3Erythema infectiosum, 261Erythema multiforme, 465Erythema ... 508Hantavirus, 30 0Hazardous materials exposurebiologic weapons, 35 8dermal toxins, 35 7 35 8 emergency department care and disposition, 35 7epidemiology, 35 6 35 7inhaled toxins, 35 7neurotoxins, 35 7ocular...