3. Normal Electrocardiogram P – Atria depolarization QRS – Ventricle depolarization PR – Conduction AV T – Ventricle repolarization QT – duration ventricle of repolarization
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21. Differential Diagnosis Cause Disease Arrhythmias e.g. Bradycardia , Tachycardia, AV block Nonarrythmic cardiac causes ASD,VSD,Cardiomyopathy,CHD,CHF,MVP,Pericarditis, Vulvular heart disease Extracardiac causes Anemia,E’lyte imbalance,Hyperthyroidism, Hypoglycemia,Hypovolemia,Pulmonary disease Psychiatric causes Anxiety disorder,Panic attacks Drugs ang medications Alcohol,Caffeine,Cardiac drug:Digitalis,Beta agonists,Theophyline,Phenothiazine
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