Description: This Module is Module 4 in a 13 Module Pediatric Echocardiography eCourse series. For information on the full Pediatric Echocardiography eCourse, please click here. In Module 4, Dr. Humes integrates a question and answer session into the discussion of the basic hemodynamics which are important to understanding congenital heart disease. These concepts are relatively basic but important for the student to fully comprehend before proceeding. The session relates predominantly to the topic of congenital heart disease. The discussion concludes with a clarification of confusing terminology.