Anaphylaxis emergency grades for communicating with emergency healthcare providers:
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Grade 1: hives, rash, itching, swelling of mouth/throat.
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Grade 2: any above plus hypotension, tachycardia, dyspnea, presyncope, GI distress (including but not limited to pain, nausea, vomiting, diarrhea)
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Grade 3: any of the above, plus profound hypotension, bradycardia or tachycardia, confusion, cardiovascular collapse, bronchospasm, hypoxia (SaO2 < 92%).
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Grade 4: cardiac arrest