An 8-year-old child on the pediatric unit recovering from severe persistent asthma is on the cardiac monitor. The nurse hears an alarm, and noted the leads on the child are on. The nurse checked for responsiveness, and the child is not responding to tactile response. What are the nurse's next actions?

A. Maintaining the child's airway is critical, but it should follow after calling for help and checking for a pulse to assess the need for resuscitation. B. Calling for help ensures additional support arrives while checking for a pulse determines the need for initiating CPR if the child is pulseless. C. Starting chest compressions is necessary if the child is confirmed to be pulseless after checking for a pulse. D. Informing the physician is important, but immediate resuscitative actions take priority to ensure the child's survival.