Video Library
Congenital Heart Defects in Children
Congenital Heart Defects in Children ( 20 Questions)
The child presents with poor feeding, fast breathing, and sweating with exertion.
Which of the following is the characteristic heart murmur associated with VSD?
A continuous "machinery" murmur that is loudest below the left clavicle is typically associated with a patent ductus arteriosus (PDA), not VSD. PDA is a different congenital heart defect.
A harsh holosystolic murmur that is best heard at the left lower sternal border is the characteristic murmur associated with Ventricular Septal Defect (VSD). This murmur is caused by the blood flowing from the high-pressure left ventricle to the low-pressure right ventricle through the VSD hole throughout the cardiac cycle.
A systolic ejection murmur that is best heard at the left upper sternal border is often associated with aortic stenosis, not VSD.
A systolic ejection murmur that radiates to the back is characteristic of aortic regurgitation, which is a different cardiac condition. The characteristic heart murmur in VSD is the result of blood flowing from the left ventricle to the right ventricle through the VSD hole during systole. This causes a harsh holosystolic murmur, which is loudest at the left lower sternal border due to the location of the defect in the ventricular septum. Therefore, choice B is The correct answer.
Choice A rationale:
A continuous "machinery" murmur that is loudest below the left clavicle is typically associated with a patent ductus arteriosus (PDA), not VSD.
PDA is a different congenital heart defect.
Choice B rationale:
A harsh holosystolic murmur that is best heard at the left lower sternal border is the characteristic murmur associated with Ventricular Septal Defect (VSD).
This murmur is caused by the blood flowing from the high-pressure left ventricle to the low-pressure right ventricle through the VSD hole throughout the cardiac cycle.
Choice C rationale:
A systolic ejection murmur that is best heard at the left upper sternal border is often associated with aortic stenosis, not VSD.
Choice D rationale:
A systolic ejection murmur that radiates to the back is characteristic of aortic regurgitation, which is a different cardiac condition.
The characteristic heart murmur in VSD is the result of blood flowing from the left ventricle to the right ventricle through the VSD hole during systole.
This causes a harsh holosystolic murmur, which is loudest at the left lower sternal border due to the location of the defect in the ventricular septum.
Therefore, choice B is The correct answer.