静脉输液一次排气成功率的影响因素

The Factors Influencing the Air-extraction Successful Rate During Venous Infusion

为探讨静脉输液一次排气成功率与输液瓶液面距地面的高度、过滤器乳头的方向的关系 ,采用不同高度 (80～ 90 cm、≤ 70 cm、≥ 110 cm)和过滤器乳头方向 (向上、水平、向下 )进行了 45 0次分组排气实验。结果 3种高度的一次排气成功率比较 ,经统计学处理 ,P<0 .0 0 5 ,高度为 80～ 90 cm组排气成功率明显高于≤ 70 cm、≥ 110 cm两组 ;过滤器乳头 3种方向排气的成功率比较 ,经统计学处理 ,P<0 .0 0 1,向上组排气一次成功率明显高于水平、向下两组。提示静脉输液排气时 ,输液瓶液面距地面的高度 80～ 90 cm、过滤器乳头向上可提高一次排气成功率。

The relationship between air extraction successful rate and height or the direction of the filter were investigated. 450 air extraction tests were performed under various air extraction heights (80 to 90 cm, ≤70 cm, ≥110 cm) and the directions of the filter needle (up, flatly or down). The results showed the air extraction successful rate at the height of 80 to 90 cm was significantly higher than that at the heights of ≤70 or ≥ 110 cm. The comparison of the air extraction successful rate under the directions of the filter revealed that the successful rate at up direction of the needle was higher than that at down or flat directions. It was suggested that the height of fluid surface to the ground was 80 to 90 cm during venous infusion and the up direction of the filter could increase the air extraction successful rate.