Abstract: A laboratory mixing apparatus for the testing of blood or other liquids includes a prescored capillary pipette to accurately measure the fluid, a centrifuge and a pipette breaking device. The pipette is secured to a squeeze bulb which ejects the fluid, after being centrifuged, into the top cell of a multi-celled container. The container is positioned in the mixing apparatus and automatically, in selected timed sequence, if needed, warmed and agitated and the membrane between cells is automatically ruptured.