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Anaphylaxis: Temporal Course Video
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Video at a Glance
- This video discusses the different temporal courses for anaphylaxis.
- The typical temporal course for anaphylaxis is a rapid symptom onset within 15-30 minutes which worsens before rapidly improving upon treatment within 4 hours.
- Delayed onset anaphylaxis presents with symptoms around 3 hours later and improves upon treatment within 8 hours.
- Protracted anaphylaxis presents with symptoms within 30 minutes and has a long course of symptom sustainability lasting hours, days, or even weeks.
- Biphasic anaphylaxis has two separate waves. The first wave has a typical temporal course, and the second wave occurs 1-8 hours after initial treatment and may last up to 24 hours.
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