Term
What is a normal WBC count? 

Definition
6,00016,000/mm^3.
(We always write out WBC counts. They are in thousands, and we need that number to calculate our absolute numbers in our differential.) 


Term
At what power are WBCs counted for a differential? And where? 

Definition
Oil immersion, in the monolayer 


Term
How do you count for a WBC differential? 

Definition
Count 100 WBCs total and how many of each kind of WBC there are in that 100. Those are your %'s 


Term
How do you find the absolute WBC counts? 

Definition
Multiply the percentage of each WBC by the total WBC count. 


Term
When and how do you do a corrected WBC count? 

Definition
If you see greater than 5 NRBC’S while doing your differential, you need to correct your WBC count.
WBC x 100/ nrbc count+ 100= corrected count
Use this corrected count for your absolutes. This is your true WBC count. 


Term
At what power is a WBC count done? 

Definition


Term
How do you do a WBC count? 

Definition
Look at 10 to 20 fields and get the average WBC number seen in those fields. Multiply this number by 2500.
For example , I saw 50 WBC’s in 10 fields. The average seen is 5. Then take the 5 and multiply by 2500. This gives me an estimated WBC count of 12’500/mm(3). 


Term
What absolute band count is considered a left shift? 

Definition
An absolute Band count of greater than 300/mm(3) is considered a LEFT SHIFT 

