Differential Diagnosis Pathology murmurs(due to an abnormality of primary cardiac origin) Ventricular septal defect Atrial septal defect Patent ductus arteriosus Tetralogy of fallot Differential Diagnosis ◼ Pathology murmurs (due to an abnormality of primary cardiac origin) Ventricular septal defect Atrial septal defect Patent ductus arteriosus Tetralogy of fallot