The above statement is not quite accurate. The reason is that there are two types of invasive and non-invasive ventilators. Other departments do not have as many invasive ventilators as ICUs. There are more than one or two non-invasive ventilators in the respiratory department.
Let's first explain what is invasive and what is non-invasive. The difference lies in the word "invasion", which means trauma. The invasive and non-invasive ventilators correspond to invasive mechanical ventilation and non-invasive mechanical ventilation respectively.
Mechanical ventilation, to put it simply, refers to the connection between the machine and the patient. Invasive means connecting the ventilator while the patient is intubated. Non-invasive means connecting the ventilator and the patient using a mask or other non-invasive method.
The broad definition of non-invasive ventilation does not only refer to the use of ventilators, but also includes diaphragm pacing, etc. The latter are rarely used in clinical practice and are rarely seen. There has always been only one reason for the seldom used clinical technology: the mismatch between treatment cost and effect.
Non-invasive ventilators are widely used in respiratory medicine. For the same reason, they are less expensive and more affordable for patients than invasive ventilation, and they have good efficacy. Early non-invasive ventilation can reduce the possibility of further deterioration of the condition to the point where invasive ventilation is required.
Invasive ventilators can also be used for non-invasive ventilation. So in the ICU, you can see that some patients may need non-invasive ventilation after extubation, and they can directly use invasive ventilators, because there are many such ventilators in the ICU. However, it is impossible for a non-invasive ventilator to be used for invasive ventilation. Because non-invasive ventilators are cheap, indicators such as compressor power are destined to be far from meeting the requirements of invasive ventilation.
Ventilators are valuable, especially invasive ones, and must be managed by a dedicated person, usually a designated nurse. Nurses are also responsible for disinfecting and maintaining ventilators.
Nurses can adjust some simple parameters after ventilator training, but only doctors can adjust ventilator parameters for critically ill patients, because only doctors can understand the patient's various monitoring indicators.
How to adjust the ventilator parameters can be said to be the skill of professional doctors who study human respiration.
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This morning, enthusiastic teacher Xin Yanjun stood next to the ventilator and gave another lecture to the new students: "Do you know what we base our adjustments on?"
"The most commonly used and useful monitoring indicator should be the patient's blood gas analysis." said Xie Wanying.
Hearing her answer so quickly, Xin Yanjun was stunned. She didn't expect her answer to be so accurate. Ventilator management has always been the focus of internal medicine. It is not easy for a surgical student to answer this question on the first day of studying in the respiratory department.
Xie Wanying's answer didn't seem to be learned from books, but rather from some clinical experience. Xin Yanjun wondered if she had learned relevant knowledge somewhere in the clinic.
Teacher Xin's suspicion was correct. Xie Wanying just couldn't confess. She was reborn. She used to work in the laboratory. She often saw ICU doing blood gas analysis on patients on ventilators every two or three days, and even doing these tests in the middle of the night. With the work experience accumulated over the years, she may know more about the monitoring indicators of ventilators than ordinary internists.
The work of the laboratory department must be connected with clinical practice, and these work contents will follow clinical learning and research.
"There seem to be many modes of ventilators, but in fact, the principle of ventilators is this. In the beginning, there were no sensors, and the machine directly inflated the patient's airway. With sensors, the machine can sense the patient's breathing and make corresponding adjustments, making the machine and the patient's breathing more coordinated. The adjustment can be controlled by the machine's computer, or it can be operated manually by medical staff. Based on this principle, there are many computer modes."
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