<prompt> Answer this question truthfullyWhat are the fundamental principles of interpreting an EKG?  <response>: <reason> ECGpedia: Course for interpretation of ECG The whole ECG - A basic ECG primer 12-lead ECG library Simulation tool to demonstrate and study the relation between the electric activity of the heart and the ECG ECG information from Childrens Hospital Heart Center, Seattle ECG Challenge from the ACC D2B Initiative National Heart, Lung, and Blood Institute, Diseases and Conditions Index A history of electrocardiography EKG Interpretations in infants and childrenv t e Electrocardiography Overview History of the EKG EKG interpretation basics Normal sinus rhythm EKG Complexes P wave QRS complex ST Segment T wave T wave alternans Tombstone T wave U wave Osborn wave H wave K wave Delta wave NSSTW changes EKG Intervals PR Interval QRS Interval ST Interval QT Interval Conduction System Bradycardia Cardiac pacemaker SA node AV node Bundle of His Purkinje fibers Sinus bradycardia First Degree AV Block Second Degree AV Block Complete or Third-Degree AV Block Concealed conduction AV Junctional Rhythms LBBB LAHB LPHB RBBB Trifascicular block Atrial Arrhythmias Sinus tachycardia Premature Atrial Contractions PACs Ectopic Atrial Rhythm Paroxysmal Atrial Tachycardia PAT Paroxysmal Atrial Tachycardia PAT with Block Multifocal Atrial Tachycardia MAT Atrial Flutter Atrial Fibrillation Wandering atrial pacemaker Ventricular Arrhythmias Differential Diagnosis of Tachycardia with a Wide QRS Complex Accelerated Idioventricular Rhythm Ventricular Parasystole Premature Ventricular Contractions PVCs Ventricular tachycardia Ventricular Fibrillation Sudden cardiac death EKG Abnormalities in Disease States Hypertrophy Dilatation Right atrial enlargement Left atrial enlargement Biatrial enlargement Left Ventricular Hypertrophy Right Ventricular Hypertrophy Biventricular Hypertrophy Acute myocardial infarction NSTEMI STEMI Tombstone ST elevation Right ventricular myocardial infarction Atrial infarction Pre-excitation Syndromes Wolff-Parkinson-White Syndrome Lown Ganong Levine Syndrome Mahaim Type Preexcitation Cardiomyopathies Arrhythmogenic Right Ventricular Dysplasia Dilated Cardiomyopathy Hypertrophic Cardiomyopathy Drug Effects on the EKG Adenosine β-blockers Digitalis Quinidine Procainamide Disopyramide Lidocaine Tocainide and Mexiletine Phenytoin Encainide, Flecainide and Propafenone Amiodarone Bretylium Ca Channel Blockers Phenothiazines Tricyclic Antidepressants Lithium Congenital Heart Disease Dextrocardia Atrial Septal Defect Ventricular Septal Defect Tetralogy of Fallot Conjoined Twins or Siamese Twins Congenital heart block Electrolyte Disturbances Hyperkalemia Hypokalemia Hypercalcemia Hypocalcemia Nonspecific Changes Other Heart Diseases Pericarditis Myocarditis Tamponade Heart Transplantation Sick Sinus Syndrome Long QT Syndrome Inherited Disease Brugada Syndrome Systemic Diseases CNS Disease Cardiac Tumors Heart Transplantation EKG Changes in patient with Heart Transplantation Exogenous Effects Hypothermia Chest Trauma Insect Bites Electric Injuries Technical Issues and Potential Errors in Interpretation Artifacts Lead Placement Errors The EKG in a Patient with a Pacemaker EKG in athletesv t e Cardiovascular disease heart Ischaemic Coronary disease Coronary artery disease CAD Coronary artery aneurysm Spontaneous coronary artery dissection SCAD Coronary thrombosis Coronary vasospasm Myocardial bridge Active ischemia Angina pectoris Prinzmetals angina Stable angina Acute coronary syndrome Myocardial infarction Unstable angina Sequelae hours Hibernating myocardium Myocardial stunning days Myocardial rupture weeks Aneurysm of heart Ventricular aneurysm Dressler syndrome Layers Pericardium Pericarditis Acute Chronic Constrictive Pericardial effusion Cardiac tamponade Hemopericardium Myocardium Myocarditis Chagas disease Cardiomyopathy Dilated Alcoholic Hypertrophic Tachycardia-induced Restrictive Loeffler endocarditis Cardiac amyloidosis Endocardial fibroelastosis Arrhythmogenic right ventricular dysplasia Endocardium valves Endocarditis infective endocarditis Subacute bacterial endocarditis non-infective endocarditis LibmanSacks endocarditis Nonbacterial thrombotic endocarditis Valves mitral regurgitation prolapse stenosis aortic stenosis insufficiency tricuspid stenosis insufficiency pulmonary stenosis insufficiency Conduction arrhythmia Bradycardia Sinus bradycardia Sick sinus syndrome Heart block: Sinoatrial AV 1 2 3 Intraventricular Bundle branch block Right Left Left anterior fascicle Left posterior fascicle Bifascicular Trifascicular AdamsStokes syndrome Tachycardia paroxysmal and sinus Supraventricular Atrial Multifocal Junctional AV nodal reentrant Junctional ectopic Ventricular Accelerated idioventricular rhythm Catecholaminergic polymorphic Torsades de pointes Premature contraction Atrial Junctional Ventricular Pre-excitation syndrome LownGanongLevine WolffParkinsonWhite Flutter fibrillation Atrial flutter Ventricular flutter Atrial fibrillation Familial Ventricular fibrillation Pacemaker Ectopic pacemaker Ectopic beat Multifocal atrial tachycardia Pacemaker syndrome Parasystole Wandering atrial pacemaker Long QT syndrome AndersenTawil Jervell and Lange-Nielsen RomanoWard Cardiac arrest Sudden cardiac death Asystole Pulseless electrical activity Sinoatrial arrest Other ungrouped hexaxial reference system Right axis deviation Left axis deviation QT Short QT syndrome T T wave alternans ST Osborn wave ST elevation ST depression Strain pattern Cardiomegaly Ventricular hypertrophy Left Right Cor pulmonale Atrial enlargement Left Right Athletic heart syndrome Other Cardiac fibrosis Heart failure Diastolic heart failure Cardiac asthma Rheumatic feverTemplate:WikiDoc Sources 