Test Overview
iSED analyzer
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.
Test Details
2 - 4 hours
- Erythrocyte Sedimentation Rate, Westergren
- ESR, Westergren
- Westergren Sedimentation Rate
STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).
Specimen Requirements
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.
Any EDTA K2 Vacutainer® tube is acceptable, including, but not limited to Pink top EDTA K2 and Tan top EDTA K2 tubes
3 mL EDTA K2 whole blood
1 mL EDTA K2 whole blood
Additional Information
A CBC specimen drawn in an EDTA K2 Vacutainer® tube is acceptable for testing if collection criteria are met. Microtainer® specimens are not acceptable. Liquid EDTA K3 collection tubes are not acceptable and will be rejected due to possible dilutional effects. Greiner brand tubes are not acceptable for ESRA testing.