It is considered that the electrode loose contact and interference,and the perception disfunction are the main influencing factors on the displaying accuracy of heart rate and rhythm.

• 认为电极接触不良及干扰、仪器感知功能不良是影响心率及心律显示准确的主要因素，测量部位、袖带松紧度及病人体位是影响血压显示准确的因素。