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Test Code ESRW Sedimentation Rate, Westergren

Performing Laboratory

Mary Washington Healthcare-Department of Pathology and Laboratory Medicine-Hematology

Specimen Requirements

Specimen must arrive within 4 hours of draw. Specimen >8 hours old will not be tested.


Container/Tube:  Lavender-top (EDTA) tube(s)

Volume:  4 mL of EDTA whole blood

Transport Temperature:  Refrigerate

Collection Instructions:  Forward promptly.

Reference Values


≥0 years:  0-10 mm/hour

≥12 years:  0-15 mm/hour

≥50 years:  0-20 mm/hour


≥12 years:  0-20 mm/hour

≥50 years:  0-30 mm/hour

Day(s) Test Set Up

Monday through Sunday