Web Results


Called erythrocytosis, an elevated red blood cell count means that the bloodstream has too many red blood cells, according to Mayo Clinic. Erythrocytosis develops for various reasons, including the body's need to compensate for low oxygen levels due to a poorly performing heart or lungs.


An elevated RBC level is diagnosed with a test called the RBC count, explains MedlinePlus. The test determines how many red blood cells are present in a sample of blood.


Elevated red blood cell counts may occur in response to dehydration, which decreases blood plasma levels, according to Mayo Clinic. Kidney, heart and bone marrow disease may also increase red blood cell production. This occurs in people who smoke, have sleep apnea or live in high altitude areas as w


Red blood cells carry oxygen and nutrients to the tissues in the body and take away carbon dioxide. They are also called erythrocytes. They get their red color from a pigment called hemoglobin, and it is the hemoglobin that actually carries the oxygen and carbon dioxide.


An elevated white blood cell count occurs when the white blood cells, also referred to as leukocytes, increase in response to infection or illness, according to MedlinePlus. Specific causes of high white blood cell counts include bacterial infections, leukemia, excess stress, allergies and anemia.


The red color of blood comes from the hemoglobin that makes up the majority of the mass of the cell, which allows the blood cell to carry oxygen around the body. The plasma itself is a straw color when viewed under a microscope, but the hemoglobin makes up so much of the blood cell that its red colo


According to Springfield Technical Community College, the primary role red blood cells play in the body is to transport oxygen from the lungs to the various body tissues. To carry out this task, the cells are filled with a substance called hemoglobin. Hemoglobin is so important to red blood cells th


A normal red blood cell lives for about 120 days. It takes about two days for the body to manufacture each red blood cell, and about two million are turned out every second. Production of new red blood cells occurs in the bone marrow.


It is normal for there to be a very small number of red blood cells in urine, according to MedlinePlus. However, the exact amount that counts as normal may differ, depending on the laboratory that performs the test.


Red blood cells have no nucleus, because most of their bulk is made up of hemoglobin, a compound that carries gases, such as oxygen and carbon dioxide. In fact, about a third of a red blood cell is dedicated to hemoglobin alone, so no room remains for a nucleus or many of the structures that other c