Final answer:
When making a blood smear with a thick sample containing small clots, you should increase the spreader slide angle to about 45°.
Step-by-step explanation:
A blood smear is a diagnostic laboratory technique used to examine blood cells under a microscope. It involves spreading a thin layer of blood on a glass slide, staining the cells, and observing them to assess various aspects of the blood, including the types and numbers of different blood cells (red blood cells, white blood cells, and platelets).
When making a blood smear with a sample that is very thick and contains some small clots, you should increase the spreader slide angle to about 45°. This will help spread the sample more evenly on the slide, making it easier to identify and count the different blood cells.