Blood substitutes. Definition

Medical Definition: blood substitutes

The complexity of human blood makes it virtually impossible to develop an artificial product to perform all its functions, but it is possible to prepare substitutes for many of its components. Between plasma substitutes the solutions used for volume replacement may be crystalloid or colloid as gelatins, hydroxyethyl starch and dextran. Among the cell substitutes are hemoglobin solutions and perfluorocarbons, capable of carrying oxygen to tissues.

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