Volume expander | 合法藥品大搜索

Avolumeexpanderisatypeofintravenoustherapythathasthefunctionofprovidingvolumeforthecirculatorysystem.Itmaybeusedforfluidreplacement.Contents.1Physiology;2Types.2.1Crystalloids.2.1.1Normalsaline;2.1.2Ringer'ssolut

Intravenous fluid that increases body fluid volume

A volume expander is a type of intravenous therapy that has the function of providing volume for the circulatory system. It may be used for fluid replacement or during surgery to prevent nausea and vomiting after surgery.[1]

When blood is lost, the greatest immediate need is to stop further blood loss. The second greatest need is replacing the lost volume. This way remaining red blood cells can still oxygenate body tissue. Normal human blood has a significant excess oxygen transport capability, only used in cases of great physical exertion. Provided blood volume is maintained by volume expanders, a rested patient can safely tolerate very low hemoglobin levels, less than 1/3 that of a healthy person.

The body detects the lower hemoglobin level, and compensatory mechanisms start up. The heart pumps m...