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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

The collection tube must be filled with 2.0 mL of blood.

Preferred Volume

4.0 mL

Minimum Volume

2.0 mL

Transport

Refrigerate (2-8°C)

Rejection Criteria

Under filled tube, overfilled tube, frozen, clotted or grossly hemolyzed specimens, incorrect anticoagulant, micro containers

Stability

Ambient (18-21°C): 10 hours; Refrigerated (2-8°C): 24 hours

Testing Information

Performed

7 days/week

Reported

24 hours

Method

Modified Westergren

Reference Values

Last Updated: Tuesday, October 17, 2017 12:41:00 PM


Client Services: 503-413-1234