《中国医疗器械杂志》1991年第1期的《问与答》栏中“血压计改用KPa作计量单位后,与原mmHg有何关系?”一问中所用的公式:KPa×7+(1/2)KPa在进行mmHg与KPa单位换算时比较麻烦。为了克服上述不足,我采用1KPa=7.5mmHg这一关系式(简称“7.5”法)就方便多了。 1.如果已知血压为mmHg时,只要将其 “China Medical Devices Magazine,” No. 1 of 1991, “Q & A” column “blood pressure meter using KPa as a unit of measurement, with the original mmHg What is the relationship?” The question used in the formula: KPa × 7 + ( 1/2) KPa is cumbersome for converting mmHg and KPa units. In order to overcome these shortcomings, I use 1KPa = 7.5mmHg this relationship (referred to as “7.5” method) is more convenient. 1. If you know the blood pressure is mmHg, as long as it