两种体位对不同血压计血压测量值的影响

目的探讨坐位与卧位对电子血压计和汞柱血压计测量值差异的影响，以便在临床工作中正确使用电子血压计及指导患者正确地使用电子血压计进行自测血压。方法对142例查体患者在坐位和卧位时由2名护士分别使用电子血压计和汞柱血压计测量左、右臂的收缩压和舒张压，比较两种血压计血压测量值的差异。结果坐位时电子血压计和汞柱血压计所测得的左臂收缩压、左臂舒张压、右臂收缩压、右臂舒张压差异无统计学意义（t=-0．315，1．560，-1．472，1．156，P〉0．05）。卧位时电子血压计和汞柱血压计所测得的左臂收缩压差异无统计学意义（t=-0．370，P〉0．05），但卧位时左臂舒张压、右臂收缩压、右臂舒张压差异有统计学意义（t=5．172，-5．402，2．979，P〈0．05）。结论坐位测量血压时，电子血压计可以替代汞柱血压计。

Effect on measured blood pressure levels with electronic and mercury sphygmomanometer in both the sitting and the supine position

Objective To investigate the difference between electronic sphygmomanometer and mercury sphygmomanometer in blood pressure (BP) measurement in both the sitting and the supine position and to instruct clinicians and nurses to measure blood pressure accurately with electronic sphygmomanometer.Methods Systolic and diastolic pressure of 142 subjects aged 19 ～ 71 ( mean 48.7 ± 9.1 ) years were measured synchronously with mercury sphygmomanometer and electronic sphygmomanometer respectively by two trained nurses in the bare upper arms in both the sitting and the supine position. Blood pressure values between the two sphygmomanometers in the same arm were compared in a self -control manner. Results There was no significant difference of systolic and diastolic pressure values ( systolic BP of 119.8 ± 16.0 vs 119.2 ± 17.6 mm Hg in the left arm, diastolic BP of 75.5 ± 9.6 vs 76.9 ± 9.0 mm Hg in the left arm, systolic BP of 121.4 ± 14.7 vs 119.2 ± 15. 1 mm Hg in the right arm, diastolic BP of 75.9 ± 9.9 vs 77.5 ± 11.3 mm Hg in the right arm)between electronic sphygmomanometer and mercury sphygmomanometer in the sitting position (t = -0.315,1. 560, - 1. 472, 1. 156, P ＞ 0.05 ). There was also no significant difference of systolic pressure values (119.8±14.6 vs 119.6±13.6 mm Hg, t = -0.370,P＞0.05) in the left arm in the supine position.However, there were significant differences of diastolic BP (75.5 ± 10.3 vs 75.6 ±9.2 mm Hg, t =5. 172,P = 0. 000) in the left arm, systolic BP ( 123. 1 ± 15.4 vs 118.9 ± 14.0 mm Hg, t = - 5.402, P = 0.000 ) in the right arm, diastolic BP (75.9 ± 11.3 vs 77.4 ± 9.3 mm Hg, t = 2.979, P = 0. 003) in the right arm in the supine position. Conclusions Mercury sphygmomanometer can be replaced with electronic sphygmomanometer in clinic practice when patients were in the sitting position.