Thường thì nó có thể cụ thể chẩn đoán trên thất của một bệnh nhân loạn nhịp tim bằng cách kiểm tra một điện tâm đồ 12 đạo trình. Rung tâm nhĩ và tâm nhĩ rung thường có thể được phân biệt qua sự kiểm tra đơn giản. trong tachycardias trên thất thường được dán nhãn là PAT | Index acid-base disturbances 13 26 28t acidosis 47 66 acute cardiac ischemia 13 acute myocardial ischemia 26 75 adenosine 108-109 adverse effects 109 for AV node reentrant tachyarrhythmias 108 effect on tachyarrhythmias 109t a-adrenergic receptor blocking drugs 43-44 adverse effects of adenosine 109 of amiodarone 93-95 of beta-blocking drugs 84-85 of calcium-blocking agents 105-106 of Class I drugs 76 fig. of disopyramide 63 of dofetilide 100-101 of flecainide 74-75 of ibutilide 98 of lidocaine 67 of mexiletine 68 of moricizine 79 of phenytoin 70-71 of procainamide 61-62 of propafenone 77 quinidine 59-60 of sotalol 96-97 of tedisamil 116 adverse events from antiarrhythmic drugs. See also proarrhythmias torsades de pointes bradyarrhythmias 95 96 109 117-118 proarrhythmia 116 122-124 reentrant arrhythmia worsening of 118 120-121 worsening of hemodynamics 122 afterpolarizations. See delayed depolarizations DADs early afterdepolarizations EADs amiodarone 40 48 87-95 adverse effects drug interactions 93-95 clinical pharmacology 90 comparison with dronedarone 114-115 dosage 91-92 electrophysiologic effects 88 90 empiric therapy for hemodynamically unstable VT VF 160 for sustained monomorphic VT 158 indications 92-93 interactions digoxin 108 flecainide 75 procainamide 61 and proarrhythmia 147 anorexia from amiodarone 93 from digoxin 108 antiarrhythmic drugs. See also calcium-blocking agents Class IA drugs Class IB drugs Class IC drugs Class I sodium-channel-blocking drugs Class II beta-blocking drugs Class III drugs Class IV drugs individual drugs 169 170 Index antiarrhythmic drugs Cont. aggressive vs. circumspect approach 133-134 and atrial flutter atrial fibrillation 148t avoidance of usage 133 classification of 42-51 Sicilian Gambit scheme 49-51 Vaughan-Williams scheme 43-49 effect on cardiac action potential 36-38 effect on cardiac arrhythmias automatic arrhythmias 38 proarrhythmia 40-42 reentrant arrhythmias 40 41 fig. triggered activity Brugada syndrome 39-40 effect