Anaphylaxis Severity
Anaphylaxis symptoms can occur on a continuum:
- Grade I: Cutaneous signs such as hives or rash.
- Grade II: Cutaneous signs, and hypotension,
tachycardia, presyncope, dyspnea or GI distress.
- Grade III: Profound hypotension, bradycardia or
tachycardia, cardiovascular collapse, confusion,
bronchospasm, hypoxia (SaO2 <92) and GI distress
- Grade IV: Pulseless electrical activity (PEA) or
cardiac arrest.
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