<prompt> In the newborn, chest compression should be started if the heart rate is -120min100min.80min.60min.  <response>: Ans. is d i.e., 60min. NewbornInfantChildAdultCommentsAge criteria 0-1 year1-14 years medical personal 1 -8 yrs lay-re scuers 14 yrs for medical personal l -8 yrs lay-rescuersPreviously child was 1-8 yearsfor allPulse checkHeart AuscultationBrachial femoralCarotidcarotidfemora Compression areaLower 13 of sternumMidstemum line below intersection of intermammaiy lineMidsternum 2 finger above intersection of intermammary lineLower 13 sterum 2 finger above xiphisternum Compression method2 thumb with encircled chest2-3 fingersHeel of one handHeel of two hand one locked over otherCompression for new born should be started if HR 60minSternal depth12-1 inch12-1 inch1-14 inch1-114 inch Compression rate90min.KKmin100min1 OGmin Ventilation rateIf compression is also provided simultaneouslyIf only ventilation i: to be provided i.e., pulses are present 30min.8-10min.8-10min.8-10min. 40-60min12-20min12-20min.10-12min. Compression ventilation ratio without advanced airway in place i.e. vent, by mouth to mouth or nose, bag mask vent.3:1 with pause for ventilation synchronized 90 compression with 30 breaths30:2 for single resuscitator 15:2 for two resuscitators30:2 for single resuscitator 15:2 for two resuscitators30:2 irrespective of no. of resuscitatorsPreviously it was - 15:2 before intubation. with an advanced airway in place i.e., endotracheal tube, LMA, combitube, tracheostomy tube- same -100 compression-min and 8-10 breath min. without any synchronization i.e., no pause for ventilation100 compression and 8-10 breathper min without synchronization100 compression 8-10 breathmin without any synchronizationPreviously it was 5:1 after intubation 