What is a white blood cell differential test?
Differential; Diff; White blood cell differential count. The blood differential test measures the percentage of each type of white blood cell (WBC) that you have in your blood. It also reveals if there are any abnormal or immature cells.
What is WBC in CBC with differential?
A white blood cell (WBC) count measures the number of white blood cells in your blood, and a WBC differential determines the percentage of each type of white blood cell present in your blood. A differential can also detect immature white blood cells and abnormalities, both of which are signs of potential issues.
What is the normal range for WBC in blood test?
Normal Results The normal number of WBCs in the blood is 4,500 to 11,000 WBCs per microliter (4.5 to 11.0 × 109/L). Normal value ranges may vary slightly among different labs.
How is WBC differential count calculated?
Calculate an absolute differential leukocyte count: This is derived by multiplying the percentage of each counted cell type by the total WBC (in thousands/µL), corrected for nRBC, to get the number of each type of leukocyte (in thousands/µL).
Why is differential WBC count more valuable?
Why is a differential WBC count more valuable than a total WBC count when trying to pin down the specific source of pathology? A differential cound determines the relative percentage of each type of WBC. Increases or decreases in specific WBC populations are often indicative (diagnostic) of specific pathologies.
What are the 5 types of WBCs?
They help the body fight infection and other diseases. Types of white blood cells are granulocytes (neutrophils, eosinophils, and basophils), monocytes, and lymphocytes (T cells and B cells).
What are the normal values for a CBC with diff?
Normal ranges for the different parts of a CBC are: Red blood cells (RBC): 3.93 to 5.69 million per cubic millimeter (million/mm3) Red blood cell distribution width (RDW, RDW-CV, RDW-SD): 11.5% to 14.5% White blood cells (WBC): 4.5 to 11.1 thousand per cubic millimeter (thousand/mm3)
What is a normal WBC for a woman?
For men, a normal white blood cell count is anywhere between 5,000 and 10,000 white blood cells per μl of blood. For women, it is a reading of between 4,500 and 11,000 per μl, and for children between 5,000 and 10,000.
How do you count differential counts?
To determine the differential, a drop of blood is thinly spread over a glass slide, air dried, and stained with a Romanofsky stain, most commonly the Wright or May-Grunewald-Giemsa technique. Two hundred cells are then counted and classified.
Which white blood cell represents the greatest percentage in a normal differential count?
When taking a Differential WBC Count of normal blood, this type of cell would be the most numerous. Normally, neutrophils account for 50-70% of all leukocytes.