fun facts that probably confuse you:
oxygen percentage in air 21%
the correct etco2 levels 4.5-5.5
the ideal map &gt;65 
ideal spo2 in post resuscitation &lt;98
adrenaline 1mg/ml in a 5ml bottle and 1ml at a time starting from the third  (and amiodaron 300mg followed by 150mg)