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- Serum total tryptase measurements may be useful for confirmation of venom or drug induced anaphylaxis (not as useful for food induced)
- Can send serial tryptase levels at the time of presentation, 1-2 hours later, and at resolution
- This is NOT helpful for confirmation at the time of the episode, as it takes several hours to perform
References
Simons EF, Ardusso LE, Bilo MB, et al. 2012 Update: World Allergy Organization Guidelines for the assessment and management of anaphylaxis.