The working credentials of a Cardiac Perfusionist and Cardiac Pulmonary Perfusionist are the same. But a course in Cardiac Pulmonary Perfusionist is more detailed in the portions of Lung and Pulmonary involvements. Apart from this you will not receive any extra treatment for having a Cardiac Pulmonary Perfusionist degree over a Cardiac Perfusionist degree.

I hope this might help you. All the very best for your future endeavors!