Blood pressure cuff too wide, too tight blood pressure value bias what's going on

Too wide or too tight a blood pressure cuff can result in a low blood pressure measurement. Proper measurements include choosing a cuff of the right width, ensuring that it is positioned correctly and that it is properly tightened, and paying attention to special populations. If the blood pressure cuff is too wide or too tight, it may result in a low blood pressure measurement. This is because when the cuff is too wide, the balloon cannot completely wrap the upper arm, causing some arteries to be compressed outside the cuff, thus affecting the measurement results; when the cuff is too tight, it will compress the blood vessels, increasing vascular resistance, and making the blood pressure measurement low. In addition, the accuracy of blood pressure measurement may also be affected by other factors, such as posture, emotion, and exercise at the time of measurement. Therefore, when measuring blood pressure, you should choose a cuff with the right width, and ensure that the cuff position is correct and the tightness is appropriate. At the same time, you should measure blood pressure in a quiet, relaxed state and maintain the correct measurement posture. For special groups, such as the elderly, obese people or people with thick arms, it is especially important to choose a cuff with the right width. If there is any doubt about the blood pressure measurement, it is recommended to take it several times or consult a doctor. In short, the correct blood pressure measurement method is very important for assessing the health status of the body. If abnormal blood pressure measurements are found, they should be promptly sought for further examination and treatment.