This is the first 1,000 characters of 1020 words (4.08 pages) in the essay titled V Tach
June 28, 2000
An dysrhythmia of the heart is an irregular heartbeat rhythm. Ventricular tachycardia is an dysrhythmia in which the lower chambers of the heart, the ventricles, beat unusually fast.
The heart rate is measured with an electrocardiogram, or ECG. This is a machine that measures the electrical impulses from the patient's heart. This is displayed on a monitor or ECG graph paper. The boxes on the graph paper measure time. Five small boxes are equal to one large box. The large box represents two-tenths of a second.
The atrial contraction is represented by the P wave. This is an upward, or positive wave of the line on the graph. The ventricular contraction is displayed by the QRS complex. The QRS complex is composed of three waves, the Q, R, and S waves. The Q wave is the first downward, or negative movement on the graph. The R wave is the positive movement following the Q wave. It rises abov...
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