What is the role of the diaphragm contraction during normal breathing in infants? {Ans: Pulls the ribs slight inward However, forcefully contracting the diaphragm results in a large drop in pressure within the chest, retracting}What are the common initial rhythms in both in-hospital and out-of-hospital pediatric cardiac arrest, especially in children younger than 12 years? {Ans: -Asystole -PEA}Which signs and symptoms are consistent with supraventricular tachycardia? {Ans: -Absent or abnormal P waves -Heart rate 220/min or greater in an infant or 180/min or greater in a child -Heart rate does not vary with activity or stimulation}For stable patients with a regular wide complex, and monomorphic tachycardia consider: {Ans: Adenosine}During the initial assessment, you find that the infant is unresponsive and has an HR of less than 60/min. What should be your next action? {Ans: Begin CPR}What should your next steps be? {Ans: -Maintains a patent airway -Apply cardiac monitor to identify rhythm and monitor pulse, blood pressure, and oximetry -Complete the initial and primary assessment}In the setting of impending or actual pulseless arrest when there is a strong suspicion of pericardial tamponade, what is the appropriate management? {Ans: Emergency pericardiocentesis}What is included in