Spectrum: Local Antimicrobial Stewardship, for Fraser Health

Identification of Anaphylaxis

Any ONE of the Following:

1) Acute onset of an illness involving skin, mucosal tissue, or both (generalized hives, pruritis or flushing, swollen lips-tongue-uvula) AND AT LEAST ONE OF THE FOLLOWING:

  • Respiratory compromise (dyspnea, wheeze-bronchospasm, stridor, hypoxemia)

  • Reduced BP or associated symptoms (hypotonia, collapse, syncope, incontinence)

OR

2) TWO OR MORE OF THE FOLLOWING that occur rapidly after exposure to a likely allergen for that patient (minutes to several hours)

  • Involvement of the skin mucosal tissue (e.g. generalized hives, itch-flush, swollen lips-tongue-uvula)

  • Respiratory compromise (dyspnea, wheeze-bronchospasm, stridor, hypoxemia)

  • Reduced BP or associated symptoms (hypotonia, collapse, syncope, incontinence)

  • Persistent gastrointestinal symptoms (crampy abdominal pain, vomiting)

OR

3) Reduced BP after exposure to a KNOWN allergen for that patient (minutes to several hours)

  • Systolic BP <90mmHg or >30% decrease from baseline