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| Absolute Indications Suspicion of a myocardial infarction or acute myocardial infarction (heart attack)Onset of moderate-to-severe angina (chest pain)Drop in systolic blood pressure (SBP) below standing resting pressure or drop in SBP with increasing workload accompanied by signs or symptomsSigns of poor perfusion (circulation or blood flow), including pallor (pale appearance to the skin), cyanosis (bluish discoloration), or cold and clammy skinSevere or unusual shortness of breathCNS (central nervous system) symptoms
 e.g., ataxia (failure of muscular coordination), vertigo (An illusion of dizzying movement), visual or gait (pattern of walking or running) problems, confusion)
Serious arrhythmias (abnormal heart rhythms)
 e.g.: second / third degree AV block, atrial fibrillation with fast ventricular response, increasing premature ventricular contractions or sustained ventricular tachycardia)
Technical inability to monitor the ECGPatient's request (to stop)
 
 
 
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