venous hum

(redirected from Nun's murmur)
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hum

 [hum]
a low, steady, prolonged sound.
venous hum a continuous blowing, singing, or humming murmur heard on auscultation over the right jugular vein in the sitting or erect position; it is an innocent sign that is obliterated on assumption of the recumbent position or on exerting pressure over the vein.

ve·nous hum

brief or continuous noise originating from the neck veins that may be confused with cardiac murmurs, particularly with the continuous murmur of patent ductus arteriosus.

venous hum

a continuous murmur heard on auscultation over the major veins at the base of the neck and around the umbilicus. It is most audible in the neck when the patient is anemic, upright, and looking to the contralateral side. It is also heard in some healthy, young individuals.

venous hum

A low-pitched hum in the neck, caused by jugular vein turbulence, with an altered or more intense flow pattern, that mimics the machinery murmur of patent ductus arteriosus; VH may be abolished by light lateral neck pressure; it may be innocent or seen in hyperthyroidism. See Machinery murmur.

ve·nous hum

(vē'nŭs hŭm)
Brief or continuous noise originating from the neck veins that may be confused with cardiac murmurs, particularly with the continuous murmur of patent ductus arteriosus.