<prompt> The initiation of the first breath in a newborn is due to:pH; PaO2; PaCO2pH; PaO2; PaCO2pH; PaO2, PaCO2pH; PaO2, PaCO2  <response>: b. pH;PaO2 ;PaCO2 Ref: AAP guidelines 2015, Ghai 8e p 126-133Hypoxia, hypercapnia acidosis Respiratory center in the brain stimulated Breathing 