In a myocardial infarction, an area of myocardium is permanently destroyed. MI is a killer disease and required treatment immediately the symptoms have been established.

Objectives: 1. To assess the knowledge level of staff nurses regarding emergency management of myocardial infarction patients 2. To assess the knowledge level of staff nurses regarding emergency management of myocardial infarction patients after administration of structural teaching program 3. To evaluate the effectiveness of structural teaching programme. 4. To find out the association between pre-test knowledge of staff nurses their selected demographic variables.

Methodology: Study was conducted with evaluative approach with pre-experimental research design and 60 samples selected through the purposive sample technique. Data was collected with help of structured knowledge questionnaire at selected hospital of Jaipur city.

Result: The overall mean of pre-test score is 29.12 whereas the mean of post-test score is 47.02 with 17.9 mean differences. The median of pre-test score is 29 and the median of post-test score is 48 and the standard deviation of pre-test was 2.83 whereas in post-test the standard deviation was 4.46. The calculated value of ‘t’ is 47.98 at the 0.05 level of significance and the tabulated value of ‘t’ is 1.96 at the 0.05 level of significance on 59 degree of freedom. The calculated value is higher than the tabulated value so we can say that the structured teaching programme on myocardial infarction can enhance the knowledge of Staff Nurses.

Conclusion: The study found that structured teaching program effectively enhance knowledge of nurses about emergency management of myocardial infarction patients.