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ESR
ERYTHROCYTE SEDIMENTATION RATE, BLOOD

Test Code ESR 
Test ERYTHROCYTE SEDIMENTATION RATE, BLOOD 
Methodology Westergren 
Description Useful as an indicator for non-specific inflammation 
Specimen REFRIGERATED SAMPLE MUST BE RECEIVED WITHIN 24 HOURS OF DRAW.

Draw blood in a lavender-top (EDTA) tube, and send 5.0 mL (minimum volume:1.5 mL) of EDTA whole blood refrigerated. Ambient temperature is acceptable if sample is received within 4 hours of draw. 

Reference Values Female: < 50 years : < 20 mm/hr
Male: < 50 years : < 15 mm/hr
Female > 50 years : < 30 mm/hr
Male > 50 years : < 20 mm/hr 
Analytic Time 1 Day 
Day(s) Test Set Up Monday through Sunday 
CPT Code(s) 85651