Video: The Great Migration: Definition & Causes. The economic conditions of World War I led to a massive movement of African Americans from the South to the North, known as the Great Migration. Examine the causes and effects of this phenomenon.
Physicians may want to look closer at WBC levels when obtaining the tests for other reasons, Manson notes. However, infections can cause a high white blood cell count that may make it appear that a patient is at high risk for heart disease when she is not. Therefore, routinely giving everyone the test to screen for heart disease is premature. More research needs to be done..
White blood cell count (WBC) White blood cells are the cells that fight off infections. There are many different types that have different functions and are usually listed as neutrophils, lymphocytes, monocytes, eosinophils, and basophils. An elevated WBC is an indicator of infection or inflammation. An increase in the WBC along with pain over the liver and fever may indicate cholangitis (infection in the bile ducts). The WBC is sometimes chronically elevated in PSC, especially when there is ch ronic cholangitis.