Sedimentation Rate

Test ID: 


CPT code:



Sedimentation Rate, Modified Westergren

Erythrocyte Sedimentation Rate


Westergren Sedimentation Rate

Clinical Use:

Evaluate the nonspecific activity of infections, inflammatory states, autoimmune disorders, and plasma cell dyscrasias

Test Information:

Elevations in fibrinogen, α- and β-globulins (acute phase reactants), and immunoglobulins increase the sedimentation rate of red cells through plasma. The test is important in the diagnosis of temporal arteritis, as well as its management.

Specimen Type:

Whole blood

Requested Volume: 

Whole blood

Minimum Volume: 

2 mL


Invert tube immediately 8 to 10 times once tube is filled at time of collection.

Storage Instructions:


Stability Requirements:




24 hours

Rejection Criteria

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

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MCI Diagnostic

Providing top patient care with fast results. 

7018 South Utica Avenue

Tulsa, Oklahoma 74136

Hours of Operation

Mon – Sat: 7AM-11PM

Sun: 7AM-3PM

Government Contract

Mon – Sat: 7AM-11PM

Sun: 7AM-3PM


Mon – Sat: 7AM-11PM

Sun: 7AM-3PM

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