what is the procedure for WBC count
Since this is not my area of expertise, I searched Google under the key words "'WBC count'" to get these possible sources:
http://www.nlm.nih.gov/medlineplus/ency/article/003643.htm
http://pennhealth.com/ency/article/003643.htm
I assume that you do not want the lab procedures that are used once the blood sample is obtained.
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
I hope this helps. Thanks for asking.