Kamlya balgoon 2009

Objectives to :- understand the Basic ECG understand the meaning of Dysrhythmia describe the normal heart conduction system. describe the normal impulse pathways. interpret Sinus Rhythm strips accurately. interpret the A trial Rhythms strips accurately. interpret AV Blocks strips accurately. interpret the Ventricular Rhythm strips Accurately kemo 2009

Basic ECG kemo 2009

Wave,complex & intervals P wave  represents a trial activation  Represents electrical impulse starting SA node & spreading through atria  P wave represent a trial muscle depolarization  It is normal 2.5 mm or less in higher & 0,11 second or less in duration kemo 2009

Wave,complex & intervals QRS complex  Represents ventricular activation  Represent ventricular muscle depolarization  It is normal 5 mm in higher & 0,12 second in duration kemo 2009

Wave,complex & intervals T wave  represent ventricle muscle depolarization U wave  represent depolarization of purkinje fibers kemo 2009

Wave,complex & intervals PR interval  Is measured from beginning of P wave to beginning of the QRS  IS time from onset of a trial activation to onset of ventricular activation  It is normal 0,12 to 0.20 second in duration kemo 2009

Wave,complex & intervals ST Segment  represent early ventricle muscle depolarization QT Interval  represent total time of ventricle muscle depolarization & depolarization kemo 2009

Normal Conduction pathways SA Node ( ) AV Node (40 – 60) Ventricles (20 40) Tachycardia >100 Bradycardia < 60 kemo 2009