Is There Any Life Threatening If There Are Air Bubbles In The Infusion Tube?
May 23, 2020
Is there any life threatening if there are air bubbles in the infusion tube?
During the infusion, some patients became very nervous when they saw a little bubble in, and hurriedly called the nurse to come over and pull the needle. Everyone has heard that if air enters the infusion tube, it will be fatal when it enters the vein. So, is this true? Would it kill people if the infusion tube got into the air?
The so-called "drip empty phenomenon": During the clinical infusion process, "drip empty" phenomenon occurs from time to time. At this time, we will see a large amount of air enter the lower infusion tube, thinking that it will soon enter the patient's body, so we start to nervous and shout Yell. In fact, because the venous pressure is equal to the atmospheric pressure, at least about 20 cm of liquid column remains in the infusion tube. If there is no external pressure, this column will not enter the patient's body. Will it kill? In fact, in clinical practice, in addition to a large amount of air, small bubbles in the infusion can also cause patients to panic. Most patients will think that as long as the air enters the blood vessels, it will cause physical discomfort or even death. Patients often call on nurses to eliminate air bubbles. Nurses explain that the reasons why tiny air bubbles have no effect on the human body are often difficult to understand. Sometimes they need to replace new infusion sets, re-puncture veins, and even cause nursing disputes. Precision infusion set! In fact, you do n’t have to worry about it.
The infusion set commonly used in clinical practice is a single-use precision filtration infusion set. The filter membrane used is a nuclear pore membrane with double-layer filter media. 、 High filtration precision, no foreign matter falling off, small adsorption to drugs, can effectively eliminate small bubbles, the disc on the precision infusion device is also called a filter membrane, which can block more bubbles than its volume and be blocked The air can be discharged through an exhaust hole. Even if there is a tiny bubble that flows into the blood vessel with the drug solution, it is broken up with the blood in the body, and then normally discharged from the body, it has no effect on our health. Only when a large volume of air larger than 5 ml enters the body, can the human body be in danger. Therefore, in the process of infusion, tiny air bubbles can be automatically filtered through the filter membrane of the precision infusion device, and will not enter the blood vessel. If the phenomenon of dripping occurs, the liquid level is as low as 5 ~ 10cm below the Murphy's dropper, the infusion set will stop the liquid level falling, and neither liquid nor gas will enter the human body. bubble.
