A patient is in refractory VFib and has received multiple appropriate defibrillations, epinephrine 1 mg IV twice, and an initial dose of lidocaine IV. The patient is intubated. A second dose of lidocaine is now called for. The recommended second dose of lidocaine is:
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Start infusion 1-2 mg/min
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0.5-0.75 mg/kg IV push
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Give endotracheal dose 2-4 mg/kg
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2-3 mg/kg IV push
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1 mg/kg IV push
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