Sedimentation Rate (ESR)
Label Mnemonic: ESR
Epic Lab Code: LAB1035
Downtime Form: A-1a General Laboratory Requisition
Hematology
6240 RCP
356-3527
Specimen(s):
Whole Blood
Specimen Instructions:
Stability: 24 hours at 2-8°C or 4 hours @ room temperature.
Collection Medium:
Lavender top tube 4 mL (EDTA)
Minimum:
4 mL full draw in lavender top top
Delivery Instructions:
Deliver to laboratory immediately after collection.
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around Time:
1 hour (upon receipt in laboratory)
Reference Range:
Men: 0-15 mm/hr; women: 0-20 mm/hr (Westergren method)
Comments:
Must be received in the laboratory within 2 hours of drawing. Specimens received for a sedimentation rate within 48 hours of a previous measurement will be cancelled. Sedimentation rate varies slowly and daily measurements are clinically unnecessary.

This test is also performed in the Iowa River Landing (IRL) clinical laboratory (for specimens drawn at that site).
Methodology:
Westergren
CPT Code:
85651
 
See Additional Information:
Specimens Requiring Immediate Delivery