What is normal saline

summary

Normal saline is different from normal saline. We use normal saline in many places in our daily life, but there are still many friends who don't know what normal saline is. Let's introduce what normal saline is.

What is normal saline

Normal saline is 0.9% NaCl aqueous solution. Because its osmotic pressure is almost the same as that of normal human plasma and tissue fluid, it can be used as rehydration (without reducing or increasing the concentration of Na in normal human body) and other medical purposes. It is also commonly used for in vitro culture of living tissues and cells.

The concentration of sodium chloride solution with osmotic pressure equal to that of animal or human plasma is 0.67-0.70% for amphibians and 0.85-0.9% for mammals and human plasma.

Physiological saline can avoid cell rupture. Its osmotic pressure is the same as that outside the cell, so it won't dehydrate or over absorb water. Therefore, it is used in many places where liquid is needed in various medical operations.

matters needing attention

The role of normal saline is very wide, can be used to clean the nose, beauty and other effects. However, physiological saline has a certain irritation, do not get into the eyes when using, so as not to damage the conjunctiva.