MODULE 5 UNIT 7: BLOOD CELL INDICES Flashcards
The (?) indices are used to define the size and hemoglobin content of the red blood cells.
red cell
They can be computed manually, although automated analyzers determine them instantly.
BLOOD CELL INDICES
These indices are used as an aid in diagnosing and differentiating anemias.
BLOOD CELL INDICES
The (?) is calculated form the red blood cell count and the hematocrit and indicates the average volume of the red blood cells in femtoliters (fL).
MCV
MCV < 80 fL
Microcytic
MCV > 100 fL
Macrocytic
MCV = 80 to 100fL
Normocytic
Normal range for the MCV is (?).
80 to 100fL
The (?) is calculated from the hemoglobin and the hematocrit and is an expression of the average concentration of hemoglobin in the red blood cells.
Mean Corpuscular Hemoglobin Concentration (MCHC)
It gives the ratio of the weight of hemoglobin to the volume of the red blood cell that is expressed as a percentage or in g/dL or g/L.
Mean Corpuscular Hemoglobin Concentration (MCHC)
It is based on the comparison of the mean hemoglobin concentration of red cells with that of the normal red cells.
Colour Index (C.I.)
It gives no true indication of the cell size or hemoglobin concentration
Colour Index (C.I.)
It is the ratio if the average volume of RBC to the average volume of erythrocytes in normal blood.
Volume Index (V.I.)
It denotes the average amount of hemoglobin per unit volume of red blood cells in relation to normal.
Saturation Index (S.I.)
It indicates the average diameter of red blood cells in microns. The most common method used for measuring MCD is the Price-Jones method which utilizes a micrometer to directly measure the diameter of the red cells. The normal MCD is 6-9 microns.
Mean Corpuscular Diameter (MCD)
