Background: Electrocardiography is the most commonly used diagnostic test in cardiology. It
contributes significantly to the diagnosis and management of patients with cardiac disorders. Aim: Assess
nurses' performance regarding electrocardiography application and its interpretation and develop suggested
guideline based on nurses need assessment. Design: A descriptive exploratory research design was utilized
for the conduction of this study. Setting the study was carried out in coronary care unit of Assiut University
heart hospital. Study subject: A convenientsample of all available nurses(40) working within the coronary
care unit at Assiut university heart hospital from both gender and agreed to participate in the study. Data
Collection Tools: I - self – administration questionnaire form which composed of nurses demographic
characteristics' and nurses' knowledge questionnaire regarding ECG application and is interpretation, II -
Nurses practice observational checklist. Results: Revealed that, 80% of the studied nurses had
unsatisfactory level of total knowledge regarding ECG application and its interpretation and 92.5% the
studied nurses had unsatisfactory level of total practice regarding ECG application and its interpretation
Conclusion: More than three quarters of the studied nurses had got unsatisfactory level of knowledge
regarding ECG application and interpretation and the majority of the studied nurses had got unsatisfactory
level of practice regarding ECG application and its interpretation. Recommendations: Training program
including the suggested guidelines toward ECG application and interpretation must be implemented for
nurses based on their need assessment and evaluate its effectiveness on performance.