The primary care pediatric nurse practitioner (PNP) is examining a 2-week-old infant and auscultates a wide splitting of S during expiration. What condition may this finding represent?

Question

Quizplus · Accepted Answer

Wide splitting of S during expiration is a characteristic finding in ASD. In ASD, there is a communication between the atria that allows blood to flow from the left atrium to the right atrium, causing a delay in the closure of the pulmonic valve during expiration, resulting in the wide splitting of S. COA, PDA, and VSD are not known to cause this finding.

The Primary Care Pediatric Nurse Practitioner (PNP) Is Examining a 2-Week-Old