How often should epinephrine injections be repeated during anaphylaxis?

How often should epinephrine injections be repeated during anaphylaxis?

• A. Every 5 minutes
• B. Every 10-15 minutes
• C. Every 30 minutes
• D. Only once

Answer: (B)

Anaphylaxis is treated with epinephrine because it rapidly reverses airway swelling, bronchoconstriction, and low blood pressure. But a single dose may not fully stop the reaction, so you reassess after the first injection and be prepared to repeat if needed. Repeating about 10 to 15 minutes after the initial dose gives enough time to judge the initial response while keeping a second dose ready if symptoms persist or worsen. Waiting longer than that can allow the reaction to progress, while giving a second dose too soon isn’t routinely necessary in this context. A second dose is important because a single dose is often not enough, and you should always seek emergency medical care after the first dose and monitor for possible biphasic reaction.

Anaphylaxis is treated with epinephrine because it rapidly reverses airway swelling, bronchoconstriction, and low blood pressure. But a single dose may not fully stop the reaction, so you reassess after the first injection and be prepared to repeat if needed. Repeating about 10 to 15 minutes after the initial dose gives enough time to judge the initial response while keeping a second dose ready if symptoms persist or worsen. Waiting longer than that can allow the reaction to progress, while giving a second dose too soon isn’t routinely necessary in this context. A second dose is important because a single dose is often not enough, and you should always seek emergency medical care after the first dose and monitor for possible biphasic reaction.