When the cuff is too loose, the blood pressure measured is usually higher than the accurate blood pressure value. When the cuff is too tight, the blood pressure measured is lower than the patient’s normal blood pressure. The cuff is essential when measuring blood pressure. In the process of tying the cuff, it is generally recommended that the cuff be tied moderately, neither loose nor tight. The main analysis is as follows:
1. Too loosely tied: Whether the human body is inflated manually or through an electronic sphygmomanometer, the amount of gas rushing into the cuff will increase. The increased amount of gas at this time has a certain effect of increasing the patient’s blood pressure value, that is, the value measured by a desktop sphygmomanometer or an electronic sphygmomanometer will increase to a certain extent.
2. Tightening too tight: The gas filled into the sleeves of the human body will be reduced, that is, the blood pressure of the patient can be measured without excessive gas filling. At this time, it is very likely to be measured on the testing machine. The value that comes out is a bit lower.
Therefore, if the cuff is too loose or too tight, it will affect the blood pressure measurement. In clinical practice, it is best to bring the cuff to the right upper arm of the human body. Basically, the right upper arm will not fall by itself. But if you shake the cuff vigorously, there will be a certain amount of movement, which shows that the tightness of the cuff is moderate.
Post time: Oct-26-2021