What is korotkoff sound and what does it indicate?

What is korotkoff sound and what does it indicate?

Korotkoff sounds (KorS) are the audible noises used to measure blood pressure. Throughout the short process of taking a blood pressure measurement, the sounds change a phenomenon that has undergone extensive study.

What are the 5 phases of Korotkoff sounds?

Korotkoff sounds (or K-Sounds) are the “tapping” sounds heard with a stethoscope as the cuff is gradually deflated. Traditionally, these sounds have been classified into five different phases (K-1, K-2, K-3, K-4, K-5) and are shown in the figure below.

Why is it called Korotkoff sounds?

Korotkoff sounds, named after Dr. Nikolai Korotkoff, a physician who described them in 1905, are sounds that physicians listen for when they are taking blood pressure.

Which Korotkoff sounds are important?

Korotkoff Sound Analysis The cuff pressure at the onset of phase I sounds (often referred to as K1) is thought to represent systolic BP. The cuff pressure when the Korotkoff sounds disappear (end of phase IV) is clinically important, as it approximates diastolic pressure; this point is traditionally called K5.

Are Korotkoff sounds normal?

If a stethoscope is placed over the brachial artery in the antecubital fossa in a normal person (without arterial disease), no sound should be audible. As the heart beats, these pulses are transmitted smoothly via laminar (non-turbulent) blood flow throughout the arteries, and no sound is produced.

When do you hear Korotkoff sounds?

At the point where the systolic pressure exceeds the cuff pressure, the Korotkoff sounds are first heard and blood passes in turbulent flow through the partially constricted artery. Korotkoff sounds will continue to be heard as the cuff pressure is further lowered.

Which statement is accurate regarding Korotkoff sounds?

Which statement is accurate regarding Korotkoff sounds? b. In phase V, all sounds are fading; this is recorded as the diastolic pressure.

How do I listen to Korotkoff sounds?

Stethoscope Usage and Korotkoff Sounds These sounds are heard through a stethoscope applied over the brachial artery when the blood pressure cuff is deflating. You will not hear anything when you first place the stethoscope over the brachial artery, because unobstructed blood flow is silent.

What is the relation between BP and pulse rate?

Pulse pressure is the difference between your systolic blood pressure, which is the top number of your blood pressure reading, and diastolic blood pressure, which is the bottom number. Doctors can use pulse pressure as an indicator of how well your heart is working.