Erythrocyte Sedimentation Ratio Auto

Abbrev Code:ESR   
Order Code:LAB322Order Name:Erythrocyte Sedimentation Ratio Auto
Synonyms:RBC Sed Rate; Sedimentation Rate, RBC; WESR; Westergren
Methodology:Automated Ves-Matic System with 20 minute sedimentation (Westergren); ESR Stat Plus analyzer, uses centrifugation and photometric principles
CPT Codes: 85652 x1
Turnaround Time:Performed and reported 24 hours/day.

Collection Instructions

Optimal Volume:3 mL
Minimum\Peds Volume:2 mL (0.5 mL collection in microtainer is adequate for testing)
Container:Purple (EDTA)
Collection Instructions:Immediately mix specimen 10 times by gentle inversion.
Causes for Rejection:Clotted, lipemic or hemolyzed specimen.

Processing and Shipping

Specimen Processing:Do not process.
Shipping Instructions:Ship at refrigerated temperature. Specimen must arrive to the laboratory within 12 hours of collection for testing to be completed within the 12 hour stability window.
Stability:8 hours at room temperature; 12 hours refrgierated.
Test Performed at or Referral Lab Hematology  (Clinics, CSC Mpls, Grand Itasca, Lakes, Northland, Range, Ridges, Southdale, St. John's, UMMC East Bank, UMMC/UMMCH-West Bank, Woodwinds)


Reference Range:
  Female Male
Age mm/hour mm/hour
0-15 y 0-15 0-15
16-49 y 0-20 0-15
50 y and older 0-30 0-20

  Female Male
Age mm/hour mm/hour
All ages 1-15 1-10
Use:Monitor therapy in inflammatory diseases, reflects acute phase reactant levels. Screen and follow rheumatoid diseases.

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