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. 2020 Sep 15;91(Suppl 11):e2020012. doi: 10.23750/abm.v91i11-S.10316

Table 1.

Criteria for anaphylaxis diagnosis

The presence of any 1 of these 3 criteria indicates that anaphylaxis is highly likely:
A Acute and rapid progressive onset with involvement of skin, mucosal tissue, or both and one of the following:

  1. Respiratory symptoms

  2. Hypotension or end-organ disfunction
B Two or more of the following occurring suddenly after exposure to a likely allergen

  1. Mucocutaneous involvement

  2. Respiratory symptoms

  3. Hypotension*

  4. Persistent gastrointestinal symptoms
C Hypotension after exposure to a known allergen

*Hypotension in infant and children: Systolic BP <70 (1-12 months)

> (70+2x age) (1-10 years)

> 90 (11-17 years)

Da Simons WAO J 2014, modified