Final answer:
In pediatric CPR, lidocaine is administered to block voltage-gated sodium channels within cardiac cells; the typical initial bolus dose is 1 mg/kg. The blockage of these channels helps stabilize cardiac rhythms during resuscitation. Calculating the correct dose is crucial and must be done by healthcare professionals.
Step-by-step explanation:
Lidocaine is a local anesthetic used during pediatric CPR at a dose carefully calculated based upon the child's weight. Administering lidocaine in the correct dosage helps to block voltage-gated sodium channels within the cardiac cells, which is essential for stabilizing the cardiac rhythms during emergencies. The blockage of sodium channels inhibits the propagation of electrical signals that are necessary for muscle contraction, including the heart muscle, leading to reduced cardiac irritability during resuscitation efforts.
During a critical medical intervention such as pediatric CPR where every second counts, accurate medication dosages are crucial. In the scenario you've presented, the dose of lidocaine for a pediatric resuscitation would typically be 1 mg/kg as an initial bolus, with maintenance infusions tailored to individual needs by healthcare professionals. It is essential that this procedure is performed by qualified personnel and according to advanced pediatric life support guidelines.