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- $Unique_ID{BRK00886}
- $Pretitle{}
- $Title{What is a Sed Rate?}
- $Subject{sed rate red blood cells cell erythrocyte sedimentation Special
- Procedures procedure Laboratory lab test Tests ESR inflammation}
- $Volume{P-7}
- $Log{}
-
- Copyright (c) 1991-92,1993 Tribune Media Services, Inc.
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- What is a Sed Rate?
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- QUESTION: When I spoke to my doctor about some recent blood tests, he told me
- that my "sed" rate was just a bit high. What is a sed rate, and what am I
- going to have to do to make it lower? I am very concerned.
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- ANSWER: The term "sed rate" is an abbreviation of the name of a blood test
- involving red cells called the "erythrocyte sedimentation rate" (also known as
- ESR). If a sample of blood is allowed to stand in a test tube, the red blood
- cells will gradually sink to the bottom of the tube, creating a clear layer of
- yellowish plasma at the top. Depending upon the method used to perform the
- test, this clear layer will measure from 0-20 mm/hour in women. When the
- cells descend at a faster rate, producing a larger clear layer, the "sed" rate
- is higher. It is a sign that there is an inflammation going on somewhere in
- the body, and may require additional tests to locate just where that process
- is going on. Usually when the situation is cared for and corrected, the sed
- rate returns to normal.
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-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
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-