“…Furthermore, the average length of stay for the acute MI patient had decreased from 21 days in 1970, to 6 days in 1995 (Wilson & Waugh, 1996). The reduction of mortality rate and reduced in-patient stay was significantly and positively affected by nurses who were able to interpret the electrocardiograph (ECG) findings displayed on the cardiac monitors (Adams & Perez, 1991), recognise the significance of changes in cardiac rate and assume a decision-making role in an emergency situation (Caunt, 1992). This, combined with increased levels of responsibility associated with technology and specialisation, requires nurses to be autonomous decision-makers (Boney & Baker, 1997).…”