A raised ESR indicates that there is inflammation in the system somewhere It will not tell you where the inflammation is or what is causing it. If a elevated ESR is indicated then the next step is to find out what the cause for this is. Often when RA is suspected an ESR test and a rheumatoid factor test is done along with joint X rays to help confirm the diagnosis. It is not necessarily dangerous to have a high ESR however on the other hand it may signal something that could be.
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A high ESR indicates that there is some sort of inflammation in the body somewhere. it will not indicate what the cause of the inflammation is. It is a test that is often used to keep an eye on the inflammatory activity in people that have rheumatoid arthritis.
Statins reduce the ESR
ESR is a measurement that indicates a measure of inflammation. There is no reason to think that altitude would have any affect on it.
The erythrocyte sedimentation rate (sed rate) blood test measures how quickly red blood cells (erythrocytes) settle in a test tube in one hour. The more red cells that settle to the bottom of the test tube within the hour, the higher the sed rate. The sedimentation rate indicates that there is inflammation somewhere in the system.
Go to the related link below (Erythrocyte Sedimentation Rate and ItsRelationship to Hematocrit in Giant Cell Arteritis) for more information on this subject.
No. it is not necessary to fast before an ESR (erythrocyte Sedimentation Rate) test