ECG     ST ELEVATION - more to heart attack ST DEPRESSION - more to ccf T INVERSION - related to electrolytes eg potassium , calcium etc CPR RHYTHM  FIRST DEGREE HEART BLOCK  SECOND DEGREE HEART BLOCK  SECOND DEGREE HEART BLOCK (TYPE 2)  THIRD HEART BLOCK DEGREE  WITH PACER FOR HEART BLOCK PATIENTS  if lead 2 3 & AVF has a STEMI , do a right sided ecg & look out for lead V4 , V5 & V6 to confirm right sided block. ( UP IS LEFT , DOWN IS RIGHT )  for BRADYCARDIA cases , look out for J-WAVE , pacer or heart block ( 80% of bradycardia cases are due to heart block. )  J WAVE BELOW ( for bradycardia )  for SVT cases , can do 2 management VALSALVA MANOEUVRE CAROTID MASSAGE (for 10 seconds) ⁃ Pt has no history of previous STROKE ⁃ Pt age above 50 ye