Is often used to monitor the effectiveness of therapy in inflammatory diseases.
Male: 0-15 mm/hour; Female: 0-20 mm/hour
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Increased levels of fibrinogen and gamma globulins, mechanical vibrations, low or high room temperature, abnormally shaped red blood cells such as sickle cells and spherocytes, clotted samples, excess anticoagulant and bubbles in the tube may cause results to be inaccurate.
2 - 4 hours
- Erythrocyte Sedimentation Rate, Westergren
- ESR, Westergren
- Sed Rate, Westergren
- Westergren Sedimentation Rate
- WESTEGREN RBC SEDI RATE
STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).
Liquid EDTA K3 collection tubes are not acceptable and will be rejected due to possible dilutional effects.
Collect specimen in a lavender top EDTA K2 Vacutainer® tube. Send intact whole blood specimen at room temperature within 8 hours of collection, or within 24 hours if refrigerated.
A CBC specimen drawn in an EDTA K2 Vacutainer® tube is acceptable for testing if collection criteria are met. Microtainer® specimens are not acceptable.