An infant has a crescendo-decrescendo systolic ejection murmur located between the second and third intercostal spaces along the left sternal border. The healthcare professional suspects an atrial septal defect (ASD). For what other manifestation does the healthcare professional assess to confirm the suspicion?
A)Wide, fixed splitting of the second heart sound
B)Loud, harsh holosystolic murmur
C)Cyanosis with crying and feeding
D)Rapid deterioration with acidosis

Question

Quizplus · Accepted Answer

A wide fixed splitting of the second heart sound is also characteristic of ASD, reflecting volume overload to the RV, causing prolonged ejection time and delay of pulmonic valve closure. A loud, harsh holosystolic murmur is consistent with a ventricular septal defect. Cyanosis with crying and feeding (exertion) are classic "tet spells" associated with Tetralogy of Fallot. Rapid deterioration with acidosis, hypotension, and shock can accompany coarctation of the aorta.

An Infant Has a Crescendo-Decrescendo Systolic Ejection Murmur Located Between