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Test Code ESR Sedimentation (Sed) Rate, Blood, LAB322

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements


Preferred: 2 mL Whole Blood Lavender-top (EDTA) tube
Specimen Volume: Minimum 1 mL EDTA whole blood

Stability: 4 hours at room temperature or 24 hours at 2-8oC


Reference Values

Males: 0-10 mm/hour

Females: 0-20 mm/hour

Useful For

The ESR is used as a nonspecific indicator of infections, inflammatory states, autoimmune disorders and plasma cell dyscrasias.  Although it will denote the presence of disease, it does not indicate the severity.  

Day(s) Test Set Up

Monday through Sunday


Automated Sedimentation Rate Reader Using Infrared Light Transmission

Test Classification and CPT Coding