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Test Code ESR Sedimentation Rate, Erythrocyte

Specimen Type

Blood.

Preferred Collection Container

LAV

Collection Volume

1 mL in a 3 mL LAV (EDTA), or 0.5 mL in a EDTA MAP microtainer (tall) or 1 mL in two traditional EDTA microtainers (short).

Minimum Collection Volume

0.5 mL in a LAV (EDTA) or 0.5 mL in a EDTA MAP microtainer (tall) or 1 mL in two traditional EDTA microtainers (short).

Collection Instructions

Routine venipuncture.

Rejection Criteria

Greiner K3 EDTA tube; EDTA tube >24 hours old stored at room temperature or 4℃ Hemolyzed, clotted, diluted with IV fluid, tube that is not filled with minimum volume, improperly labelled tube; Capillary blood.

Specimen Storage and Stability

Lavendar tubes cannot be used if stored over 24 hours at room temperature or 4&#x2103.

Turn Around Time

4 hours.

Lab Department

Hematology

Alias

Erythrocyte Sedimentation Rate; ESR; Sedimentation Rate, Westergren; Sed Rate; Sedimentation Rate; Westergren Sedimentation Rate;

Ordering Info

NOTE:Greiner K3 EDTA tubes are not acceptable for this test. Minimum volume has changed to 0.5 mL LAV EDTA.Recommended alternative test: The CRP (C - reactive protein) test also offers an indication of inflammation with a minimum specimen requirement of 0.6 mL in 1 full mint green microtainer or 1.0 mL in a mint green PST vacutainer.

EPIC Code

LAB2476

Acceptable Collection Container

LAV (EDTA) or EDTA MAP Microtainer (tall) or traditional EDTA Microtainer (short). See MAP and Traditional Microtainer guide under Forms to see pictures of the two types of LAV microtainers.

Additional Information

Indications for ordering ESR: Giant cell arteritis, Polymyalgia rheumatica, Prosthetic Joint Infections, Osteomyelitis, and Hodgkin Risk Assessment. There is unclear evidence but acceptable use for Rheumatoid Arthritis, Systemic Lupus Erythematosus, Pediatric Inflammatory Bowel Disease.

Day(s) and Time(s) Performed

Monday through Sunday, 24 hours