Several other airports are within driving distance to Laguna Beach. With 30.5 million passengers, Los Angeles International Airport (lawa.org/welcomeLAX.aspx) was the busiest airport in the region in 2011 and the third-busiest airport in the United States. It is located 54 miles northwest of Laguna Beach.
Blood tests. Doctors most frequently use blood tests to diagnose polycythemia vera. If you have polycythemia vera, blood tests may reveal: 1  An increase in the number of red blood cells and, in some cases, an increase in platelets or white blood cells.2  Elevated hematocrit measurement, the percentage of red blood cells that make up total blood volume.lood tests. Doctors most frequently use blood tests to diagnose polycythemia vera. If you have polycythemia vera, blood tests may reveal: 1  An increase in the number of red blood cells and, in some cases, an increase in platelets or white blood cells.
The hematocrit blood test determines the percentage of red blood cells (RBC's) in the blood. Blood is composed mainly of red blood cells and white blood cells suspended in an almost clear fluid called serum.The hematocrit test indicates the percentage of blood by volume that is composed of red blood cells.The condition called  anemia  results from having too few red blood cells. Anemia causes a variety of symptoms. The hematocrit is a basic test that can tell a physician a lot about a person's health.lood is composed mainly of red blood cells and white blood cells suspended in an almost clear fluid called serum. The hematocrit test indicates the percentage of blood by volume that is composed of red blood cells. The condition called  anemia  results from having too few red blood cells.