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Erythrocyte sedimentation rate

Test Code
ESR


Alias/See Also
ESR, Sed rate, Sedimentation rate


Preferred Specimen
1.0 mL whole blood (100 uL minimum)


Instructions
Collection tube must be filled properly and mixed thoroughly. Deliver to laboratory promptly.


Transport Container
EDTA (lavender/purple top)


Specimen Stability
Room temperature: 6 hours, Refrigerated: 12 hours, Frozen: unacceptable


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Clotted specimens are unacceptable.


Reference Range
Female: 0-30 mm/hr

Male: 0-10 mm/hr


Clinical Significance
ESR is a widely used, non-specific screening test. It is indicative of the presence of infectious, inflammatory, degenrative or neoplastic conditions. The increased rate of red cell determination is mainly associated with qualitative and quantitative changes in the plasma proteins.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.