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.
Blood samples are then taken and analyzed. The blood volume test is used to evaluate if the amount of blood in your body is appropriate for your gender, height and weight. A hematocrit measurement is also taken. This blood test calculates the percentage of red blood cells in the bloodstream.A low hematocrit reading may indicate the presence of anemia. blood volume test (also called a plasma volume test or a red cell mass test) is a nuclear lab procedure used to measure the volume (amount) of blood in the body.