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Laboratory Medicine

Laboratory Test Catalogue

Erythrocyte Sedimentation Rate (ESR)

Test Name

Erythrocyte Sedimentation Rate (ESR)

Lavender Tube Specimen Type / Requirements

Container Type = Lavender

Minimum Venous Volume = 500μL whole blood

Specimen Handling

Collection Instructions: Collect sample in a lavender (EDTA) top and send to core lab. Ensure sample is mixed adequately. Sample should be well mixed at time of collection to prevent platelet clumping Write your initials, date and time of collection on the collection label.

Stability: Stable for 4Hrs at room temperature.

Transportation: Transport at room temperature within 1 hour of collection.

Sample Rejection Criteria: Sample 4Hrs Plasma, clotted sample, unlabeled, non sufficient quantity, or if cold agglutinin sample.

Required Documentation

Turnaround Time (TAT)

4hrs: Routine

Test Utilization

Reference Value

Men < 50 years old < 15mm/hr

Men ≥ 50 years old < 20mm/hr

Women < 50 years old < 20 mm/hr

Women ≥ 50 years old < 30 mm/hr

Test Code

ESR with CBC, (ESR1 without CBC)


Rouleaux Formation.

Testing Location


Other Information

Last Updated: May 06, 2020