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Erythrocyte Sedimentation Rate

Mnemonic

ESR

Synonym

ESR - Sed rate

Specimen Collection Requirements

Collect

Whole Blood, one 4.0 mL or 2.0 mL lavender (EDTA) top tube

Supply Item Number - 158386

Handling

Do not under fill tube, collection tubes must be filled to a minimum of 1/2 of the maximum sample volume.

Do not overfill tube, collection tubes must not be filled to more than the maximum sample volume.

Preferred Volume

4.0 mL lavender (EDTA) top tube containing between 2.0 - 4.0 mL whole blood.

2.0 mL lavender (EDTA) top tube containing between 1.0 - 2.0 mL whole blood.

Minimum Volume

1.0 mL

Transport

Refrigerate (2-8°C)

Rejection Criteria

Sodium citrate tubes are not acceptable. Microtainer, BD Map or RBT (raised bottom tubes), are not acceptable. Aliquot tubes are not acceptable. Over or under filled tubes are not acceptable. Frozen, clotted or hemolyzed samples are not acceptable.

Stability

24 hours refrigerated (2-8°C) or 24 hours room temperature

Testing Information

Performed

7 days/week

Reported

24 hours

Method

Rheology Technology

Reference Values

Last Updated: Thursday, July 2, 2020 02:35:33 AM


Client Services: 503-413-1234