Final answer:
Poor blood stain can result from factors such as inadequate heparin and clotting factors production, excessive fibrinogen or platelets, and conditions affecting blood viscosity or erythropoiesis.
Step-by-step explanation:
Factors that can lead to a poor blood stain include an inadequate production of heparin, which is an anticoagulant that prevents blood clots from forming prematurely. Another factor is inadequate production of clotting factors, which can cause conditions such as hemophilia, where there is a deficiency of factors like VIII or IX, leading to increased bleeding and poor blood stain quality. Also, an excessive production of fibrinogen or platelets can disrupt normal blood clotting processes and contribute to staining issues.
The process of creating a peripheral blood smear and staining it allows for the examination of red blood cells, platelets, and various types of white blood cells under a microscope. Conditions such as polycythemia or anemia can alter the viscosity of blood, affecting erythropoiesis and the overall appearance of a blood smear. Liver function impacts the production of plasma proteins, thus any liver abnormalities can also change blood viscosity slightly and affect blood stain quality.