41. Most automatic tachycardias are supraventricular tachycardias ( SVT ). 42. Cheney's ventricular tachycardia started and stopped on its own, Zipes said. 43. Ultimately, ventricular tachycardia leads to ventricular fibrillation. 44. Tachycardia is a fast heart rate, defined as above 100 bpm at rest.45. Activating the diving reflex with cold water can be used to treat supraventricular tachycardia . 46. "Rhythm discrimination " will see how regular a ventricular tachycardia is. 47. Atropine has no anti-diarrheal properties, but will cause tachycardia when overused. 48. The mechanism and primary etiology of Inappropriate Sinus Tachycardia has not been fully elucidated. 49. Electrical alternans with sinus tachycardia is a highly specific sign for large pericardial effusion. 50. Fever, tachycardia and sepsis may be present.
