The problem is that most of the heat transfer in an oven is radiant, so a transparent liquid in a transparent dish is going to get very little heat transfer. Though the air is transparent as well, it need much less heat to get to temperature than water does. One option is to use a non-transparent dish.
The 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.
Polycythemia: Introduction. Polycythemia is a rare condition in which the body produces too many red blood cells. There are two primary types of polycythemia: polycythemia vera and secondary polycythemia. The causes, symptoms, and treatments of the two conditions vary. Polycythemia vera is more serious and can lead to more critical complications than secondary polycythemia.