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Erythrocyte Sedimentation Rate (ESR)
MessagePerformed in the Hematology Lab x5475, 76.
Test Code
ESR
Alias/See Also
Sed Rate
CPT Codes
85652
Preferred Specimen
whole blood
Minimum Volume
1 mL
Transport Container
3 mL purple top tube (EDTA)
Transport Temperature
Room Temperature
Specimen Stability
Stable at room temperature for 24 hours after collection.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross Hemolysis, lipemia, clotted, QNS or too old for testing (refer to specimen stability)
Methodology
Photometrical Rheology
Setup Schedule
24/7
Limitations
Extremely lipemic and hemolyzed samples or patients with cold agglutinins cannot be tested
with this methodology as the ESR is read by locating the interface between the sedimented
RBC and plasma. Therefore, the above conditions render the interface undetectable.
with this methodology as the ESR is read by locating the interface between the sedimented
RBC and plasma. Therefore, the above conditions render the interface undetectable.
Reference Range
Male < 50 yrs. 0-15mm
Male >50 yrs. 0-20mm
Female < 50 yrs. 0-20mm
Female > 50 yrs. 0-30mm
Male >50 yrs. 0-20mm
Female < 50 yrs. 0-20mm
Female > 50 yrs. 0-30mm
Clinical Significance
Non-specific indicator of disease or inflammation.
