You were engaged in CPR for 3-year-old child found unresponsive in the ward

(D). Pulseless electrical activity (PEA) is a clinical condition characterized by unresponsiveness and lack of palpable pulse in the presence of organized cardiac electrical activity. In this situation (and in asystole) adrenaline is indicated in cycles of 3. 5 min, considering an advanced airways and reevaluation for the pulse status; if it became shockable give shock of 2 joules/kg. You need to look also for correctable causes (the 6H and 5T). If it became normal that goes for (ROSC) post-cardiac arrest care