Blood Pressure Measurement at the Doctor's (according to Korotkow/Korotkoff)
When you visit a doctor, the examination often begins with measuring your blood pressure. In most doctor's offices, you can still find the classic blood pressure measuring devices: the so-called "sphygmomanometers".
A stethoscope is used to refine the measurement method. In addition to visual recognition, there is also an acoustic perception. With a stethoscope, the examiner can hear exactly when the pressure in the cuff compresses the artery. Newer models feature a fully automatic electronic measuring device.
The setup is very similar to the old model, but the values are read from a monitor.
Illustration: Measurement according to Korotkow
1. The cuff is applied.
2. The cuff is inflated until it interrupts the blood flow.
3. As the air is released, the vibrations in the blood flow are registered.
4. When the blood flows again without turbulence, the measurement is complete.
By the way:
A study published in September 2023 showed that even the body position taken during blood pressure measurement in the doctor's office plays a role. The values measured while sitting on an examination table, without the subject being able to lean back, place their feet, or rest their arm, were systolic 7 mmHg and diastolic 4.5 mmHg higher than when sitting in a chair with feet elevated and arm supported.
Sources:
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Last update 12/2023
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