Background: Readmission to the intensive care unit is associated with increased cost of care and worse patient outcomes Aim :of the study was to determine and explore nurses and physicians perception of causes and risk factors contributing patients readmission to coronary care unit. Design:- descriptive research design was used in this study . Setting: The study was conducted in coronary care units at a University Hospital. Sample: thirty nurses and twenty-five physicians working at the Coronary Care Unit. Tools: semi structured interview questionnaires. Results: thirty-two factors within four broad themes that could lead to readmissions were identified (1) patient factors: Previous comorbidities, Previous acute coronary syndrome, Bad medication compliance and Patient discharged before articulation goal of care (100%). (2) process factors: Unqualified staff member, Resources constraints (100%). (3) provider factors: Heavy workloads 90%, Unqualified staff member deal with highly demand patient (86,9). (4) organizational factors: Resources constraints (when patient transfer to ward)100% Conclusion and recommendations: intensive care unit care givers need to look at ways of increasing the knowledge and skills of ICU staff or identify more appropriate environment for managing acutely ill patients