Parameters:
(1) total blood hemoglobin by colorimetric method in g/dL
(2) hematocrit in percent
total hemoglobin in g/dL =
= (red blood cell associated hemoglobin) + (infused polymerized hemoglobin)
According to 03.06.02:
red blood cell associated hemoglobin in g/dL =
= ((percent hematocrit as a whole number) - 0.8) / 2.8
red blood cell associated hemoglobin in g/dL =
= (percent hematocrit as a whole number) / 2.941
where:
• There may be some individual variation from these relationships. In theory a pretransfusion blood sample could be used to derive a patient-specific factor correlating hemoglobin and hematocrit.
infused polymerized hemoglobin in g/dL =
= (total hemoglobin in g/dL) - (red blood cell hemoglobin estimated from hematocrit)
