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.
High hematocrit may be due to: 1  Congenital heart disease. 2  Failure of the right side of the heart (cor pulmonale). 3  Dehydration. 4  Abnormal increase in red blood cells (erythrocytosis). 5  Low blood oxygen levels (hypoxia). 6  Scarring or thickening of the lungs (pulmonary fibrosis).