- Blood (about 6-12 teaspoons) will be drawn for routine tests and to check your kidney and liver function, as well as the status of your immune system. Part of the blood will be used to test for CMV, hepatitis B, hepatitis C, HIV, HTLV, syphilis, West Nile virus, sickle cell anemia, and Chagas disease. Part of the blood collection will also be used for a pregnancy test for females who are able to have children. To continue to receive infusions of your donor's cells, the pregnancy test must be negative.