Multiple Choice
Where is the greatest volume of blood found in the body?
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17. The Blood
Introduction To Blood
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What are Korotkoff sounds?
A
Sounds associated with respiratory movements
B
Sounds produced by the heart valves closing
C
Sounds generated by turbulent blood flow in the arteries
D
Sounds heard during the measurement of blood pressure using a stethoscope and sphygmomanometer
Verified step by step guidance1
Korotkoff sounds are specific sounds that medical professionals listen for when they are measuring blood pressure using a stethoscope and a sphygmomanometer.
These sounds are generated by the turbulent flow of blood in the arteries as the cuff of the sphygmomanometer is gradually deflated.
The process begins with the cuff being inflated to a pressure higher than the expected systolic blood pressure, which temporarily stops blood flow in the artery.
As the cuff pressure is slowly released, blood begins to flow again, and the first Korotkoff sound is heard, indicating the systolic blood pressure.
The sounds continue to change in quality and eventually disappear, with the point at which they disappear indicating the diastolic blood pressure.
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