hematocrit
- n the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit
- n a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood
- Bleeding in moderation to cut the hematocrit score to a safe reading between 40% and 45%, the Tulane doctors suggest, may well be one answer.
- Doctors have traditionally waited until the patient's hematocrit the proportion of the blood made up of red blood cells drops below the normal range of 45% to 55% before .
- As a rule, they introduced donated blood as soon as the patient's hematocrit--a measure of the proportion of the blood made up of oxygen-carrying red cells--fell below the normal .