indicator-dilution method

indicator-dilution method

a method for measuring blood volume. A known amount of a substance that dissolves freely in blood but does not leave the capillaries is injected intravenously. After a few minutes a sample of blood is withdrawn, and the volume of blood in the body is calculated from the concentration of the substance in the sample, the sample's volume, and the hematocrit.
References in periodicals archive ?
In 1987, the SNM Scientific Program Committee expanded its criteria to include all research that made use of the indicator-dilution method.