Korotkoff sounds


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Related to Korotkoff sounds: auscultatory gap

Ko·rot·koff sounds

(kŏ-rot'kof),
characteristic noise heard over an artery when pressure over it is reduced below systolic arterial pressure, as when blood pressure is determined by the auscultatory method.

Korotkoff sounds

[kôrot′kôf]
Etymology: Nickolai Korotkoff, Russian physician, 1874-1920
sounds heard during the taking of a blood pressure reading using a sphygmomanometer and stethoscope. The sphygmomanometer is inflated enough to collapse an artery. As air is released from the cuff, pressure on the artery is reduced, and the blood is heard pulsing through the collapsed vessel. See also blood pressure, diastole, sphygmomanometer, systole.

Ko·rot·koff sounds

(kō-rot'kof sowndz)
Aural findings heard during blood pressure determination using a stethoscope and sphygmomanometer. Sounds originating within the blood passing through the vessel or produced by a vibrating motion of the arterial wall.

Korotkoff sounds

The sounds heard through a stethoscope held over a compressed artery with each pulse beat as the compression is gradually released, in the process of measuring the blood pressure with a SPHYGMOMANOMETER. The first pulse sound heard as blood is able to pass through the narrowed artery is Korotkoff phase I. The sounds get louder as the cuff pressure continues to fall, but then there is a sudden muffling. This is Korotkoff phase IV; the cuff pressure at this point has, in the past, been taken as the diastolic pressure. Soon after that the sounds disappear altogether. This is Korotkoff phase V, the cuff pressure at which is now generally taken as the diastolic. (Nikolai Sergeivich Korotkov, 1874–1920, Russian physician).

Korotkoff,

Nikolai S., Russian physician, 1874-1920.
Korotkoff sounds - sounds heard over an artery when pressure over it is reduced below systolic arterial pressure, as when blood pressure is determined by the auscultatory method.
Korotkoff test - a test of collateral circulation.

Ko·rot·koff sounds

(kō-rot'kof sowndz)
Characteristic noise heard over an artery when pressure over it is reduced below systolic arterial pressure.

Korotkoff sounds (kôrot´kôf),

n.pr the noises heard when taking a blood pressure reading, originated by blood passage causing vibrations in the walls of the blood vessel.
References in periodicals archive ?
7), (17) As in adults, the use of Korotkoff sounds via the auscultatory method is recommended since research has shown that oscillometric values tend to be less accurate than auscultated values in children.
If you've pumped the cuff high enough, you should hear nothing at first, but as you deflate it, you'll start to hear the Korotkoff sounds, which are dull thuds in time with your heartbeats.
A revolutionary differential sensor engineered into the CardioDyne NBP 2000 which detects and separates the exercising patient's blood pressure, or Korotkoff sounds, from the inherent noise introduced by patient motion in the stress test laboratory.