Central line
Enables access to one of the large veins in order to give chemotherapy and other drugs.

Chemotherapy
Drugs used in the treatment of cancer. Work by killing the cancer cells or slowing their growth.

Clotting screen
Blood test to check if blood is clotting normally.

Cytomegalovirus (CMV)
Virus present in a percentage of the population, normally harmless. Can cause chest infection when counts are low.

CD34 cells
Purified stem cells – from which platelets, red and white cells develop.