ESR Tubes
After 1 hour, EDTA anticoagulated blood is taken into the tube without any additional diluent, and the rate of red blood cell fall is determined in millimetres. Because the maximum possible anomalous value is smaller because the column is shorter, this method is less sensitive than the Westergren method.
Which anticoagulant is used to calculate ESR?
Blood anticoagulated with 3.8 percent trisodium citrate (TSC) or ethylene diamine tetraacetic acid (EDTA) can be used to determine ESR tubes.
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