medical concept, doctor looking ecg paper report of the patient in emergency room in hospital that showing normal sinus rhythm.

atrialfibrillation bradycardia checkup concept diagnosis doctor ecg ekg emergency examination healthcare heart heartbeat heartdisease heartrate hospital line looking medical ncd nonurgent normal paper patient physical pwave qrscomplex report rhythm room science septum showing sinus stelevate stenosis stroke tachycardia technology treatment twave urgent ventricular