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What is Koakoffs sounds are due to and explain in detail?
Korotkoffs sounds are due to aerial turbulence on occlusion of the vessel. The streamline flow in the unconstricted aery is silent. But when the aery is narrowed, the velocity of flow through the constriction exceeds the critical velocity and turbulent flow results. Turbulent flow in the paly occluded brachial aery sets up the vibration (oscillations) of the vessel wall which are heard through the stethescope and are known as koratkoffs sounds. Phase Description K-1 Tapping sound Corresponds to systolic BP K-2 Murmur (soft swishing sound) K-3 Loud and clear tapping sound K-4 Muffled sound K-5 Disappearance of sounds Corresponds to Diastolic BP Note K-4 (muffles sound) corresponds to DBP in Adults after excercise Children Hypehyroidism Aoic regurgutation Patients with aeriovenous fistulas for hemodialysis Ref: Ganong&; s Review of Medical Physiology 26th edition Pgno: 567