Which murmur finding is associated with Tricuspid Regurgitation?

Which murmur finding is associated with Tricuspid Regurgitation?

• A. Diastolic murmur at the apex
• B. Holosystolic blowing high-pitched murmur at the left lower sternal border
• C. Continuous murmur best heard at the left infraclavicular area
• D. Systolic click at the mitral area

Answer: (B)

Tricuspid regurgitation shows up as a holosystolic, blowing high-pitched murmur that is best heard along the left lower sternal border. This timing makes sense because the regurgitation of blood from the right ventricle back into the right atrium happens throughout systole, not just part of it, so the murmur spans the entire systolic period. The left lower sternal border location corresponds to the tricuspid valve’s area, and the sound is often described as blowing and high-pitched due to turbulent flow. The murmur typically becomes louder with inspiration (the Carvallo sign) because more venous return to the right heart increases the regurgitant volume. For comparison, a diastolic murmur at the apex points to conditions like mitral stenosis, a continuous murmur heard best at the left infraclavicular area suggests a patent ductus arteriosus, and a systolic click at the mitral area indicates mitral valve prolapse.

Tricuspid regurgitation shows up as a holosystolic, blowing high-pitched murmur that is best heard along the left lower sternal border. This timing makes sense because the regurgitation of blood from the right ventricle back into the right atrium happens throughout systole, not just part of it, so the murmur spans the entire systolic period. The left lower sternal border location corresponds to the tricuspid valve’s area, and the sound is often described as blowing and high-pitched due to turbulent flow. The murmur typically becomes louder with inspiration (the Carvallo sign) because more venous return to the right heart increases the regurgitant volume.

For comparison, a diastolic murmur at the apex points to conditions like mitral stenosis, a continuous murmur heard best at the left infraclavicular area suggests a patent ductus arteriosus, and a systolic click at the mitral area indicates mitral valve prolapse.