A test is performed in other to determine the structure, shape, color and pattern appearances of the different blood cells present in the blood. i.e red cells, white cell, platelets. BLOOD FILM? Is a thin layer of blood smeared on a microscopic slide and then stained in such a way to allow the various blood cells to be examined microscopically. FIXING When completely dry, fix a blood film with absolute methanol. Place the film on a staining rack and add 1-2 drops of moisture free methy alcohol and allow to dry on the film. STAINING THE BLOOD FILM In district laboratories, thin blood films are usually stained manually using leishman or wright’s stain. These stains are example of alcohol containing romanowsky stains which stain blood cells differently, making it possible for the scientist to differentiate and identify the various blood cells.