The Impact Of Improper Wearing Of The BP Cuff

The effects of the BP cuff on blood pressure measurements are as follows.

1. When the cuff is tightly tied, the blood pressure measurement will be lower than the true value.

2. When the cuff is tied too loose, the blood pressure measurement will be higher than the actual value.

Why is this happening?

1. When the cuff is tied too tight, the measured blood pressure is lower than the actual blood pressure due to increased pressure on the artery.

2. When the tie is too loose, the cuff expands into a circular shape after pumping to reduce the contact surface with the upper arm, so that the measured blood pressure is higher than the actual blood pressure.

The middle of the cuff airbag is placed above the upper arm radial artery, and the cuff edge should not be rolled up to prevent the cuff from acting as a tourniquet. The lower edge of the cuff is 2 to 3 cm above the elbow. The cuffs are tied too tightly, and the measured systolic and diastolic pressures are low. Tied too loose can make the measured blood pressure higher. It is generally believed that it can be tightly inserted when inserting two fingers.

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