Infections and inflammation usually cause high white blood cell counts, according to the American Association for Clinical Chemistry. The elevated count can be also be attributed to allergic responses, severe stress and pregnancy. Medications such as corticosteroids and epinephrine boost white blood cells as well, according to the Mayo Clinic.Know More
Typically, white blood cell count tests are ordered along with complete blood cell count tests, according to the American Association for Clinical Chemistry. A physician may request these tests when a patient has a fever, body aches and chills. In addition, physicians use these counts to help diagnose disorders of the blood or immune system.
White blood cells, also called leukocytes, are the body's second line of defense against foreign invaders, according to Merck. The body’s physical barriers, such as skin and the lining of respiratory membranes, are the first line of defense. If foreign bodies, such as bacteria and pollen, make their way into the bloodstream, white blood cells discover the foreign bodies and destroy them. This is why an infection or allergic reaction results in elevations in white blood cell counts. Severe mental and physical stress can also spur the body to increase circulating white blood cells, according to MedlinePlus. Leukemia, cigarette smoking and tissue damage increase leukocyte count as well.Learn more about Medical Ranges & Levels
A high white blood cell count may indicate anemia, infection, allergic reaction or leukemia, states MedlinePlus. Other causes include extensive tissue damage, cigarette smoking and severe mental or physical stress. Taking certain medications, including albuterol, corticosteroids, lithium and epinephrine, may also raise a person's white blood cell count.Full Answer >
A raised MCV, or mean corpuscular volume, means the red blood cells are larger than they should be, explains the American Association for Clinical Chemistry. Counting red blood cells and measuring their size helps diagnose different types of anemia.Full Answer >
Iron poisoning, hemolytic anemia and hemochromatosis are the causes of a high iron level in the blood, notes the American Association for Clinical Chemistry. A doctor usually orders an iron test when a patient has symptoms such as lack of energy, fatigue, joint pain and weakness.Full Answer >
A high MCV means the red blood cells are larger than they should be, while a high RDW means there is a mix of large and small red blood cells, states the American Association for Clinical Chemistry. MCV and RDW are not substances, but measurements based on RBC size.Full Answer >