A venous hum heard over the internal jugular vein of a child:
a. usually signifies untreatable illness.
b. usually has no pathologic significance.
c. usually requires surgical intervention.
d. must be monitored until the child is grown.
B
A venous hum is caused by the turbulence of blood flow in the internal jugular veins. It is com-mon in children and usually has no pathologic significance. To detect a venous hum, auscultate over the right supraclavicular space at the medial end of the clavicle and along the anterior border of the sternocleidomastoid muscle. It is louder during diastole.
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