Sign in →

Epic Test Code LAB547 Erythrocyte Sedimentation Rate - Manual Method

Performing Location(s)

BMC,LFH,OCH,FTT,FOX,CRH

Synonyms

Sed Rate

Specimen Type

Whole Blood

Preferred Container

Lavender Top

Blood Tube Draw Volume

Min 50% draw volume  

Minumum Volume to Submit for Testing

3.0 mL Whole Blood

  • Multiple test can be performed from this volume. For question please contact the lab at 547-3975.  

Storage Requirements

Refrigerate up to 12 hours

Transportation Needs

Deliver to the laboratory within 12 hours

Causes for Rejection

Mislabeled or unlabeled specimen

Less than 50% draw for Vacutainer tubes

Clotted specimens

> 12 hours old

Limitations

Assay requires a one hour sedimentation process

The ESR is subject to many interferences. It is affected by a high WBC count, increased fibrinogen, abnormal RBC’s, variances in room temperature, transport time, and certain drugs. With the exception its use as a monitor for certain rheumatologic conditions, a C-reactive protein test (CRP) may be considered a replacement for the ESR

Specimen must be tested within 12 hours of collection. Add-on requests for specimens older than 12 hours will not be performed. It is suggested that the clinician consider ordering a C-reactive protein test

Reference Values

Population Units Reference Range
Male ≤ 50 years old mm/hr

≤ 15
Female ≤ 50 years old mm/hr ≤ 20
Male > 50 years old mm/hr

≤ 20
Female > 50 years old mm/hr ≤ 30

 

Days of Analysis

All

Available STAT

No

Additional Information

DO NOT FREEZE

 

This test is NO LONGER offered on a STAT basis. It is suggested that clinicians order the C-reactive protein test.

Methodology

Manual

CPT Code

85651

Last Updated

29-Apr-20