First of all, side effects refer to other effects among all the effects, which are inevitable. For example, if you have a cold and take cold medicine, it is the role of medicine to treat the cold, but the drowsiness that comes with it is called side effect. Therefore, infusion will not produce side effects, because it is only a method, and if there is, the needle pain is one.
Secondly, his adverse reactions are basically caused by infusion of different liquids or improper operation rather than infusion itself. For example, air embolism caused by air input can be avoided; For example, phlebitis is a vascular reaction caused by the infusion of irritating liquid rather than the infusion itself; Another example is allergic reaction, which is also due to the reaction to imported drugs. As for the influence on intelligence, you should not only become an idiot, but also become a low-energy school in hospitals, especially those departments that accept chronic diseases.