The following graph shows the fibrillation current versus shock duration. Thresh
ID: 1987656 • Letter: T
Question
The following graph shows the fibrillation current versus shock duration. Thresholds for VF in animals for 60 Hz ac current. Duration of current (0.2 to 5 s) and weight of animal body were varied. (From L. A. Geddes, IEEE Trans. Biomed. Eng., 1973, 20, 465–468. Copyright 1973 by the Institute of Electrical and Electronics Engineers.) From your knowledge of cardiac electrophysiology, explain what rhythm would result from an intense 100 ms shock that occurred during (a) the P wave, (b) the R wave, (c) the T wave, and (d) diastole. From these results, explain the shape of the curves in the following graph.
Please write neatly and show all work! Many thanks!
Lead III 5000Fibrillation threshold 2000 Lead III 94 kg pony + 12 kg dog 10kg dog o 7.5 kg dog 6.0 kg dog x 5.0 kg dog 1000 500 200 100 50 0.5 5 10 0. 0.2 Shock duration, secondsExplanation / Answer
Refer to following link:
https://eva.fing.edu.uy/pluginfile.php/68296/mod_resource/content/1/c14.pdf
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