What is Erythrocyte sedimentation rate (ESR)

ESR or Erythrocyte sedimentation rate is the rate at which erythrocyte settles after an intensive centrifugation for an hour. This test determines body inflammation, though it cannot predict the reasons for it. Reasons for an increased sedimentation rate are anemia, rheumatic fever, thyroid malfunctioning, kidney disease, arthritis and pregnancy. In short, any condition which causes an inflammation, gives positive ESR test. While these show an increase in the rate, sickle cell anemia or spheroids.
 

ESR Test