A Whole Blood Colorimeter for Continuous Registration of Evans Blue Dye Concentration
A whole blood colorimeter was developed which permits cardiac output determination after the injection of 5 to 15 mg. of Evans blue dye, resulting in maximal excursions of 5 to 11 cm. The apparatus permits sampling of blood through a cardiac catheter and its sensitivity is independent of the oxygen saturation and hematocrit of the blood sampled.
- Received May 23, 1955.
- © 1955 American Heart Association, Inc.