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This is a rhythm strip recorded by telemetry on a 70 year old patent. The major time lines are 0.2 of a second. Note that the tachycardia is initiated with a premature ventricular beat with the retrograde P'wave sitting on the up sloping section of the T wave. There is a long P'R interval to the next QRS with is the beginning of the tachycardia at a rate of about 160/min. With this tachycardia the patient had chest pain and a blood pressure of 70mm systolic. A coronary angiogram found severe triple vessel coronary disease.
EKG World Encyclopedia http://cme.med.mcgill.ca/php/index.php , courtesy of Michael Rosengarten BEng, MD.McGill
Michael Rosengarten BEng, MD.McGill
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|current||07:52, 13 February 2012||3,004 × 1,170 (1.58 MB)||DarrelC|