What is the best position to auscultate a venous hum?

What is the best position to auscultate a venous hum?

• A. Sitting position, right clavicular region
• B. Lying flat
• C. Standing
• D. Left lateral decubitus

Answer: (A)

A venous hum is a benign, continuous murmur produced by turbulence in the jugular venous system, most commonly heard in children. It is heard best with the patient upright because gravity increases venous flow and turbulence in the jugular veins, making the sound more conspicuous. The right supraclavicular region is the most audible site since the right internal jugular and right brachiocephalic veins provide the most direct path to the heart, so the murmur is typically louder on the right side above the clavicle. Because of these factors, the sitting position with the stethoscope over the right clavicular area yields the strongest, most characteristic sound. The murmur often diminishes when the patient lies down and is less evident or absent when the veins are less distended or compressed.

A venous hum is a benign, continuous murmur produced by turbulence in the jugular venous system, most commonly heard in children. It is heard best with the patient upright because gravity increases venous flow and turbulence in the jugular veins, making the sound more conspicuous. The right supraclavicular region is the most audible site since the right internal jugular and right brachiocephalic veins provide the most direct path to the heart, so the murmur is typically louder on the right side above the clavicle. Because of these factors, the sitting position with the stethoscope over the right clavicular area yields the strongest, most characteristic sound. The murmur often diminishes when the patient lies down and is less evident or absent when the veins are less distended or compressed.