Polycythemia (also known as polycythaemia or polyglobulia) is a disease state in which the proportion of blood volume that is occupied by red blood cells increases.Blood volume proportions can be measured as hematocrit.he emergency treatment of polycythemia (e.g., in hyperviscosity or thrombosis) is by venesection, the removal of blood from the circulation. Depending on the underlying cause, venesection may also be used on a regular basis to reduce the red blood cell count.
Turpentine is an excellent cleaner for paint brushes. If youâve wondered how to clean your brushes effectively, this oil-based solvent will do the job for you. Most cleaning spirits can only dissolve fresh paint. However, turps goes a step further as it is able to clear slightly hardened paint from brushes.
General Guidelines. 1  Wipe off any excess paint using a cloth or soft tissue. 2  Rinse the brush in turpentine or oil if you've been using oils, or lukewarm water if you've been using a water-based medium. 3  Wipe the brush on the cloth again to remove the last of the excess paint. Wash gently using a little bit of mild soap (or a gentle dishwashing liquid). Dab the brush gently onto the piece of soap, then work up a lather in a small container or the palm of your hand if you're not using any toxic pigments or solvents.