nitrogen (ËnaÉªtrÉdÊÉn ) noun. a. a colourless odourless relatively unreactive gaseous element that forms 78 per cent (by volume) of the air, occurs in many compounds, and is an essential constituent of proteins and nucleic acids: used in the manufacture of ammonia and other chemicals and as a refrigerant.
Polycythemia Vera: Doctor Discussion Guide. Since polycythemia vera is a type of blood cancer, you'll want to see a hematologist. Here are some questions to ask during your next appointmentâ¦ read more read more
The first is called polycythemia vera, which is also known as primary polycythemia. Polycythemia vera is caused by a problem with the bone marrow, resulting in an overproduction of cells. The bone marrow is the 'primary' site for red blood cell production, which might help you recall this term's alternate name. This is also the site where white blood cells and platelets are made, and in a person with polycythemia vera, we see that all of these cells may increase.