Sedimentation Rate (ESR)
Test:
212
CPT:
85652
Synonyms
Erythrocyte Sedimentation Rate
ESR
Westergren Sedimentation Rate
Special Instructions
Expected Turnaround Time
Within 1 day
Specimen Requirements
Specimen
Within 1 day
Volume
Tube fill capacity
Minimum Volume
2 mL (Note: This volume does not allow for repeat testing.)
Container
Lavender-top (EDTA) tube
Collection
Invert tube immediately 8 to 10 times once tube is filled at time of collection.
Storage Instructions
Refrigerate
Causes for Rejection
Hemolysis; clotted specimen; underfilled tube; specimen older than 24 hours; improper labeling; transfer tubes with whole blood; specimen received in any anticoagulant other than EDTA; specimen diluted or contaminated with IV fluid; patient specimen with presence of cold agglutinins or cryoglobulins; specimen received with plasma removed
Test Details
Use
Evaluate the nonspecific activity of infections, inflammatory states, autoimmune disorders, and plasma cell dyscrasias