A soccer player is stung by a bee and develops urticaria, throat tightness, and hypotension. After activating EMS, what is the FIRST-line pharmacological intervention?
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A
Diphenhydramine 50mg IM
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B
Epinephrine 1:1000, 0.3-0.5mg IM into the anterolateral thigh
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C
Hydrocortisone 100mg IV
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D
Albuterol inhaler 2 puffs