ARUP's Laboratory Test Directory

0040325: Sedimentation Rate, Westergren (ESR)

Test Mnemonic: WEST
Methodology: Westergren

Performed: Sun-Sat

Reported: Within 24 hours

Specimen Required:  
Collect: One 7 mL black (sodium citrate).

Transport: 7 mL whole blood at 20-25°C.  Deliver to lab immediately.

Remarks: Specimen should be run within four hours of collection.

Unacceptable Conditions: Frozen, hemolyzed, or clotted samples.

Stability: Ambient: 4 hours; Refrigerated: 24 hours; Frozen: Unacceptable

Reference Interval:
Male: 0-10 mm/hr
Female: 0-20 mm/hr

CPT Code(s):
85651

 

 

 
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