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Hematology - Cells

Complete blood count

QuestionAnswer
WBC Parameters 1) WBC Count 2) Relative count (%) 3) Absolute Count (#) 4) WCB Morphology
Leukocytosis When WBC count is elevated
Leukopenia When WBC count is decreased
Formula for Absolute count relative #/100 x WCB analyzer value
Left shift of wbc means infection, see an increase in neutrophils
Rule of 3 Hemoglobin x 3 = . Hematocrit
MCV reference interval 80 -100 fL
MCV formula HCT/RBC
MCV below 80fL microcytes
MCV above 100 fL macrocytes
Normal MCV referred to as.. normocytic
MCH reference interval 26-34 pg
MCH formula HGB/RBC
MCHC Reference interval 320-360 g/L
MCHC formula HGB/HCT
Decreased MCHC is known as hypochromic
Increased MCHC is known as hyperchromic
Normal MCHC known as Normochromic
RDW stands for Red cell distribution width: Refers to the size variation of the red cells. Reference interval 11.5-14.5%, RDW CAN ONLY BE INCREASED
The RDW correlates with the MCV when evaluating ____ in a patient. anemia
Reticulocyte reference interval 0.5-2.5%
What is a reticulocyte RBC's with residual RNA. Normal in small amounts, abnormal in large. Are the last stage of maturation before becoming an erythrocyte. Retics are viewed on the supravital stain
What is polychromasia? A disorder where there is an abnormally high number of immature rbc's found in the bloodstream as a result of being prematurely released from the bone marrow during blood formation.
An increased platelet count is referred to as Thombocytosis
A decreased platelet count is referred to as Thombocytopenia
MPV reference interval Mean platelet volume - 6.9-10.2 fL
Pancytopenia All cells are increased (rbc, wbc, plt)
Pancytosis All cells are decreased (rbc, wbc, plt)
Hemacytometer When cells are counted with the aid of a microscope, a hemacytometer is used as a counting chamber.
Created by: moreandmore
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