Anaphylaxis and Allergic Reactions · CDA

What is a key reason for maintaining two doses of epinephrine (e.g. two auto-injectors) in a dental emergency kit for allergic reactions?

  1. Because one auto-injector is reserved solely for treating asthma attacks
  2. About one third of cases need a second dose (poor response or biphasic reaction)
  3. Because the second injector serves only as a backup for controlling pain
  4. Because the very first dose of epinephrine is nearly always completely ineffective
Show answer and explanation

Correct answer: About one third of cases need a second dose (poor response or biphasic reaction)

Studies show that many anaphylaxis cases may need a second dose — and biphasic reactions can occur — so having two doses ensures readiness for recurring or persistent symptoms.

Difficulty: Medium Question 15 of 21

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