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HelpTest Code SR Sedimentation Rate (ESR), Blood
Methodology
WestergrenUseful for temporal arteritis, infectious/inflammatory processes.
Performing Laboratory
St. Clair Hospital LaboratorySpecimen Requirements
Specimen must arrive within 2 hours of draw.
1 lavender-top (EDTA) tube (3 mL of EDTA whole blood).
Reference Values
Males1 day-13 years: 0-10 mm/hour
14-49 years: 0-15 mm/hour
≥50 years: 0-20 mm/hour
Females
1 day-13 years: 0-10 mm/hour
14-49 years: 0-20 mm/hour
≥50 years: 0-30 mm/hour