In pediatric anaphylaxis with shock, what is the recommended push-dose epinephrine regimen?

• A. Epinephrine 1:1,000 0.01 mg/kg IM; max 0.5 mg
• B. Epinephrine 1:2,000 0.01 mg/kg IM; max 0.5 mg
• C. PUSH DOSE EPINEPHRINE 0.1 mcg/kg IV/IO, max 5 mcg titrate to SBP>70 mmHg + 2x age
• D. Diphenhydramine 1 mg/kg IM

Answer: (C)

In a pediatric patient with anaphylaxis and shock, the goal is rapid, controllable support of blood pressure and perfusion. Push-dose epinephrine given IV or IO fits this need by delivering small, titratable boluses that quickly constrict vessels and boost cardiac output. The recommended regimen is 0.1 micrograms per kilogram per dose, administered IV or IO, with a maximum of 5 micrograms per dose, repeated as needed and titrated to maintain a target systolic blood pressure of 70 plus twice the child’s age in years. This approach addresses the life-threatening hypotension of anaphylaxis far more effectively than intramuscular dosing in this scenario, and it provides a controlled way to raise BP rather than relying on a single large IM injection. Diphenhydramine does not treat shock and is not sufficient as the primary therapy in anaphylaxis with hypotension. The incorrect options either use the wrong route or concentration for a shock state, or rely on a medication not appropriate for reversing the critical hemodynamic compromise.