WBC: See White Blood Count

White Blood Cells: A type of blood cell that helps the body fight infection and disease. These cells begin their development in the bone marrow and then travel to other parts of the body. White blood cells also play a role in inflammation and allergic reactions.

White Blood Count: A blood test that counts the number of white blood cells in a given blood sample.

Workup: The process that a closely matched potential donor undergoes to determine whether he or she is healthy and prepared to donate stem cells. Workup includes a detailed information session with a donor center coordinator, a thorough physical examination, a donation of additional blood samples for testing and usually a donation of autologous blood. During the donor workup two questions need to be answered after the volunteer has been fully educated about stem cell donation: 

• Does the volunteer want to donate their stem cells? 
• Is the volunteer medically able to donate their stem cells?