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不少高血压患者的家里都购置了血压计,但是患者自测的血压数值常常与医务人员所测的不一致,有时甚至还相差很远,这是为什么呢?1、受检者上臂与心脏不在同一水平线上。如果上臂位置过高,测得的血压值就会偏低;如果上臂的位置过低,测得的血压值就会偏高。2、测血压时水银柱打得太低。比如只打到180～170毫米汞柱,这时虽然听诊器内可能无声了,但有可能是心律不齐患者两次心跳之间出现较长的间歇。3、放气的速度不恰当。一般来说,放气的速度以每秒水银柱下降2～3毫米为适宜。测第一次时,数值经常偏高,而第二、第三次一般较稳定。应在放气后休息30秒以上再测一遍。两次
Many hypertensive patients at home have purchased a sphygmomanometer, but the patient self-test blood pressure values often inconsistent with the medical staff measured, and sometimes even a long way to go, which is why? 1, the subjects of the upper arm and the heart is not On the same horizontal line. If the upper arm position is too high, the measured blood pressure value will be low; if the upper arm position is too low, the measured blood pressure value will be high. 2, blood pressure mercury bar playing too low. For example, only hit 180 ~ 170 mmHg, at this time although the stethoscope may be silent, but it may be arrhythmia patients between the two heartbeats appear longer intermittent. 3, deflated the speed is not appropriate. In general, the rate of deflation per second mercury drop 2 ~ 3 mm is appropriate. Measuring the first time, the value is often high, while the second, the third is generally more stable. Should rest after deflated more than 30 seconds test again. twice