(99 percent of blood cells were captured during experiments). Researchers used plastic components, to reduce manufacturing costs. See also Biomarker (medicine), a protein or other biomolecule measured in a blood test Blood film, a way to look at blood cells under a microscope Blood lead level Hematology, the study of blood Luminol, a visual test for blood left at crime scenes. Schumm test, a common test for blood mismatch Barbro Hjalmarsson Blood gas test References