中心静脉压测量压力套装更换频率的研究
Changing frequency research of CVP pressure sensor measuring device suite
目的:探讨测量中心静脉压( CVP)时压力传感器测压套装的更换频率。方法采用便利抽样法选取留置深静脉管并使用压力传感器测压装置测量CVP的40例患者为研究对象,装置连接床旁的监护仪,每日2次测量患者的CVP。分别顺序以隔日1次、每周2次、每周1次、每2周1次的频率更换压力套装,每种更换频率持续4周,将用毕的压力套装管路的冲管液自连接深静脉导管端留置于无菌试管中,进行普通细菌培养,比较不同更换频率间的细菌培养阳性率。结果不同更换频率下,只有每周1次更换管路冲洗液的细菌培养有2例阳性,阳性率为5.00%。经论证排除假阳性结果后,不同更换频率的管路清洗液时的细菌培养结果均为阴性。结论使用压力传感器测压装置每日2次测量CVP时,2周更换1次压力套装是安全的。
更多Objective To explore the frequencies changing of pressure sensor measuring device suite during central venous pressure( CVP) measurement. Methods A total of 40 patients who required indwelling deep venous catheter and the application of pressure sensor measuring device suite for CVP measurement, were selected as sampling, and the devices connected bedside monitor for CVP measurement twice per day. The frequencies of the suite were changed as every two days, twice per week, once per week, and once every two weeks in order, each way were implemented for four weeks. The flushing water from the connection of deep venous catheter end of the used device was collected to put in asepsis tube for normal bacteria culture, and we compared the positive rate of water bacteria culture with different changing frequencies of suite. Results Under different changing frequencies, there were just two cases presented positive for bacteria culture with positive rate 5. 00% in the changing frequency of once per week. After ruling out the false positive results, flushing water of different changing frequencies were negative for bacteria culture. Conclusions It is safe to utilize pressure sensor measure device suite to measure CVP twice every day and change device once every two weeks.
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