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.

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 is the second Korotkoff sound?

There are five distinct phases of Korotkoff sounds: Phase 1: A sharp tapping. This is the first sound heard as the cuff pressure is released. This sound provides the systolic pressure reading. Phase 2: A swishing/whooshing sound.

What are Korotkoff phases?

The different Korotkoff sounds are identified by the character of the sounds, as outlined by Geddes et al. Phase I sounds are loud, with a clear-cut snapping tone; phase II sounds have a murmur-like quality; phase III sounds are similar in character to phase I sounds; and phase IV sounds have a dull or muffled tone.

Why is it called Korotkoff sounds?

Korotkoff sounds are the sounds that medical personnel listen for when they are taking blood pressure using a non-invasive procedure. They are named after Nikolai Korotkov, a Russian physician who discovered them in 1905, when he was working at the Imperial Medical Academy in St. Petersburg, the Russian Empire.

Which of the Korotkoff sounds is considered the diastolic blood pressure quizlet?

-Most clinicians consider the fifth Korotkoff sound, which is actually the disappearance of sound, an adult patient’s diastolic pressure.