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February 10, 2012

Sedimentation Rate Glossary of Terms

The following are health and medical definitions of terms that appear in the Sedimentation Rate article.

Erythrocyte: A cell that contains hemoglobin and can carry oxygen to the body. Also called a red blood cell (RBC). The reddish color is due to the hemoglobin. Erythrocytes are biconcave in shape, which increases the cell's surface area and facilitates the diffusion of oxygen and carbon dioxide. This shape is maintained by a cytoskeleton composed of several proteins. Erythrocytes are very flexible and change shape when flowing through capillaries. Immature erythrocytes, called reticulocytes, normally account for 1-2 percent of red cells in the blood.

Inflammation: A basic way in which the body reacts to infection, irritation or other injury, the key feature being redness, warmth, swelling and pain. Inflammation is now recognized as a type of nonspecific immune response.
See the entire definition of Inflammation

RBC: Short for red blood cells, the cells that carry oxygen and carbon dioxide through the blood. This rather remarkable feat is thanks to hemoglobin, the pigment that makes red cells (and blood) look red. The red blood cells are also known as red corpuscles or erythrocytes (literally, red hollow vessels).
See the entire definition of RBC

Red blood cells: The blood cells that carry oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them to transport oxygen (and carbon dioxide). Hemoglobin, aside from being a transport molecule, is a pigment. It gives the cells their red color (and their name).
See the entire definition of Red blood cells

Sedimentation rate: A blood test that detects and monitors inflammation in the body. It measures the rate at which red blood cells (RBCs) in a test tube separate from blood serum over time, becoming sediment in the bottom of the test tube. The sedimentation rate increases with more inflammation. Also called the erythrocyte sedimentation rate. Abbreviated as sed rate or ESR.

Serum: The clear liquid that can be separated from clotted blood. Serum differs from plasma, the liquid portion of normal unclotted blood containing the red and white cells and platelets. It is the clot that makes the difference between serum and plasma.
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Sedimentation Rate

What is Weber-Christian disease? What are the risk factors for this disease?

Weber-Christian disease is an uncommon inflammatory disease of the fatty tissues of the body. Weber-Christian disease is also referred to as idiopathic lobular panniculitis (ILP) and relapsing febrile nodular panniculitis syndrome.

The term Weber-Christian often refers to a group of diseases that involve the deep fat. These disorders first appear on the skin as reddish, tender, and raised (inflamed) areas. Mostly, Weber-Christian describes cases of recurring inflammation of special sections of fat called lobules. The exact cause of Weber-Christian panniculitis is unknown. The disorder is frequently associated with generalized symptoms such as fever and body aches.

Weber-Christian disease is most commonly seen in females 30-60 years of age. It can occur in both sexes, in all ages, and rarely in infants. There are no other known risk factors.

Usually, both sides o...

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