Erythrocyte Sedimentation Rate (ESR) Westergren, Semi-Automatic, Blood

Methodology: I-SED*

Specimen Requirements: 1 lavender-top (EDTA) tube (minimum: 2.0 mL of EDTA whole blood). Avoid hemolysis. REFRIGERATE SPECIMEN AFTER COLLECTION.

• Specimen is acceptable up to 24 hours after collection if refrigerated.
• If CBC and sedimentation rate are being ordered together, draw a separate lavender-top (EDTA) tube for each assay. Keep the tube for CBC at room temperature, refrigerate the tube for the sedimentation rate.

Analytical Time: 1 day

Days Set Up: Monday through Sunday

CPT Information:
85652 –

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