EKG Exam Questions & Answers Graded A+ Correct 100%

define tachycardia - Answer fast, rapid heartbeat bradycardia - Answer slow heartbeat arrhythmia - Answer improper beating of the hear (irregular/too fast/ too slow) cardiac ischemia - Answer lack of blood flow and oxygen to the heart muscle ventricular fibrillatin - Answer life-threatening heart rhythm that results in a rapid, inadequate heartbeat premature contractions - Answer extra, abnormal heartbeats that begin in the ventricles holter monitor - Answer portable device that records the rhythm of the heart continuously myocarditis - Answer inflammation in the muscle of the heart dyshythmia - Answer abnormality in physiological rhythm, in the activity of the brain/heart athersclerosis - Answer diseases of the arteries by the deposition of plaques of fatty material on their inner walls myocardial infarction - Answer another term for heart attack sinus rhythm - Answer any cardiac rhythm where depolarization of the cardiac muscle begins at the SA node. what part from the ECG waveform represents ventricular repolarization? - Answer T wave what part from the ECG waveform represents atrial depolarization? - Answer P wave this part from the waveform represents the time it takes for the cardiac impulse to travel from the atria to the ventricles - Answer PR interval what part from the ECG waveform represents ventricular depolarization - Answer QRS complex what part from the ECG waveform represents the end of ventricular depolarization and the beginning of ventricular repolarization - Answer ST segment what speed does the paper move while recording a normal electrolcardiogram - Answer 25 mm/s why would the paper be advanced to a faster speed? - Answer if the patient has tachycardia, the paper would need to be in a faster speed