Source:http://linkedlifedata.com/resource/umls/id/C0039231
MSH: Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.,CSP: excessive rapidity in the action of the heart.,NCI: Rapid beating of the heart, usually defined as greater than 100 beats per minute.,NCI: An abnormally rapid heartbeat, usually applied to a heart rate above 100 per minute.,NCI: Tachycardia; an abnormally rapid heartbeat, usually applied to a heart rate above 100 per minute.