Reaction assessment scale
(0º-IVº)
Severity of reaction symptoms Nature of symptoms
Local reaction Limited skin reaction
  General symptoms: light Skin: erythema, pruritus, urticaria, rhinitis, conjunctivitis
General symptoms: anxiety
IIº   General symptoms: moderate Circulatory: heart rate ↑, RR ↓; breathing: wheezing; gastrointestinal: nausea, vomiting, abdominal pain, loose stools
IIIº   General symptoms: severe Circulatory: shock; respiratory: bronchial obstruction; the central nervous system: involuntary urination/stool
IVº Acute circulatory-respiratory failure Cardiac arrest, respiratory arrest
Table 1: Symptom classification system recommended by the German Society for Allergy and Clinical Immunology (DGAI).
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