Explain why the introduction of large doses of drugs into a vein is accompanied by a dropper with a 0.9% NaCl solution?

1) The introduction of large doses of drugs without dilution can cause a sharp change in blood and a violation of the buffer systems of the body, which can lead to death.
2) A physiological solution of 0.9% NaCl is close in composition to blood plasma and does not cause death of body cells.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.