Differences in therapeutic consequences of exercise testing between a rural and an urban Danish county: population based study.

the date of any previous instruction on defibrillation technique were also recorded. Data were collected from 20 consultants, 2 staff grades, 38 registrars, 31 senior house officers, and 10 preregistration house officers. There was no significant difference (determined by analysis of variance) in paddle positioning between different grades or specialties or between those who had received defibrillation instruction within the past three years and those who had not. Results are shown in the figure. The positions for the sternal and apical paddles specified by the European Resuscitation Council are shown. Sixty five per cent of sternal paddles were placed within 5 cm (approximate radius of a defibrillation paddle) of the position recommended in the guidelines. Most apical paddles were placed too medially and too cranially, only 22% being placed within 5 cm of the position recommended by the guidelines.