Basic fluid is the supply of essential water, electrolytes and sugar necessary for life support. The physiological salt solution and glucose solution is the most similar to the concentration of various substances dissolved in the blood. In physiological salt solution, ‘physiology’ means ‘having the same osmotic pressure as blood concentration’. ‘Salt’ is a substance that dissolves in water, it uses superior quality salt when administered into human body, which is expressed as salt. It is made by adding nutrients such as glucose and amino acid to suit the purpose. Normally, ‘5% glucose’ means 5g of glucose is dissolved in 100ml of water. It is the same as osmotic pressure of blood, so it does not cause pain in blood vessels even when administered for a long time. In addition to its unique purpose of supplying water and electrolytes, it can be used as a diluted solution to dilute the intravenous medicine.

Nutritional fluid including sugars, lipids, amino acids, vitamins, and minerals is supplied to patients who can not eat for a long time. It is high concentration of sugar solution, various concentrations of amino acid medical fluid and lipid medical fluid.
The fluid flow is divided into a single bag, a 2 chamber bag and a 3 chamber bag, based on the number of the partitions. A single bag contains an amino acid formulation which may be divided into a phyiamine, nepramine, or hepatamine, aaccording to the subject to be treated and a single lipid formulation such as a regimen.
The 2 chamber bag has CombiFlex with two compartments containing sugar and amino acids separated by one partition wall, and the partition wall may be broken before using.
The 3 chamber bag has combi-flex lipids and wineries, which contain sugar, amino acid and lipid in three compartments between two compartments.

Special fluid is a type of fluid using in special cases that is not classified as basic of nutritional fluid. When a brain hemorrhage occurs due to a traffic accident, the blood pressure in the brain increases. At this time, special fluid such as ‘Cerol’ and ‘Mannitol’ rapidly discharges the blood in the brain. There is also a plasma expander fluid that keeps the blood volume constant to reduce the risk of patients suffering from a traffic accident or major surgery bleeding. In addition, a small amount of electrolyte additive, flushing medium for the purpose of washing and disinfecting blood during operation belongs to special fluid.