font size


    Sedimentation Rate
    (Erythrocyte Sedimentation Rate or ESR)

    Medical Author:

    What is a sedimentation rate?

    A sedimentation rate is common blood test that is used to detect and monitor inflammation in the body. The sedimentation rate is also called the erythrocyte sedimentation rate because it is a measure of the red blood cells (erythrocytes) sedimenting in a tube over a given period of time. Sedimentation rate is often abbreviated as "sed rate" or ESR.

    How is a sedimentation rate performed?

    A sedimentation rate is performed by measuring the rate at which red blood cells (RBCs) settle in a test tube. The RBCs become sediment in the bottom of the test tube over time, leaving the blood serum visible above. The classic sedimentation rate is simply how far the top of the RBC layer has fallen (in millimeters) in one hour. The sedimentation rate increases with more inflammation.

    What is the normal sedimentation rate?

    The normal sedimentation rate (Westergren method) for males is 0-15 millimeters per hour, females is 0-20 millimeters per hour. The sedimentation rate can be slightly more elevated in the elderly.

    Medically reviewed by Rambod Rouhbakhsh, MD, MBA, FAAFP; American Board of Family Medicine

    REFERENCE:

    "ESR"
    National Institutes of Health


    Medically Reviewed by a Doctor on 2/18/2014

      Patient Comments

      Viewers share their comments

      Sedimentation Rate - Testing Question: What were the results of your sedimentation rate test?
      Sedimentation Test - Indications Question: Did you receive a sedimentation test? What were the results and how did it affect your diagnosis?
      Source: MedicineNet.com
      http://www.medicinenet.com/sedimentation_rate/article.htm

      Arthritis

      Get the latest treatment options

      advertisement
      advertisement
      Use Pill Finder Find it Now See Interactions

      Pill Identifier on RxList

      • quick, easy,
        pill identification

      Find a Local Pharmacy

      • including 24 hour, pharmacies

      Interaction Checker

      • Check potential drug interactions
      Search the Medical Dictionary for Health Definitions & Medical Abbreviations

      NIH talks about Ebola on WebMD