In the PEN-FAST acronym, A stands for which reactions?

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Multiple Choice

In the PEN-FAST acronym, A stands for which reactions?

Explanation:
In this mnemonic, the A stands for Anaphylaxis or Angioedema. These are the most severe immediate reactions to penicillin and strongly suggest a true IgE-mediated allergy. The scoring system uses this flag to identify higher-risk patients who may need formal allergy testing or warrant caution, while other reaction types like asthma/urticaria, non-specific rash, or fever alone don’t indicate the same immediate, life-threatening risk.

In this mnemonic, the A stands for Anaphylaxis or Angioedema. These are the most severe immediate reactions to penicillin and strongly suggest a true IgE-mediated allergy. The scoring system uses this flag to identify higher-risk patients who may need formal allergy testing or warrant caution, while other reaction types like asthma/urticaria, non-specific rash, or fever alone don’t indicate the same immediate, life-threatening risk.

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