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Test Code ESR ETRTHROCYTE SEDIMENTATION RATE (ESR)

Aliasis

Sed Rate, ESR

Patient Preparation

No special patient preparation required

Collection Method

Venous collection

Minimum Volume

1 mL EDTA tube or
500 uL MAP (microcontainer) tube

Container

Whole blood: Purple/Lavender top

Preferred Specimen

Purple/Lavender Top (EDTA whole blood)

Acceptable Specimen(s)

Puprle/Lavender EDTA

Reference or Target Ranges

Males

 

0 – 28 Days

0-2 mm/hr

28 Days – 12 Years

0-13 mm/hr

12 – 50 Years

0-15 mm/hr

>50 Years

0 –20 mm/hr

Females

 

0 – 28 Days

0-2 mm/hr

28 Days – 12 Years

0-13 mm/hr

12 – 50 Years

0-20 mm/hr

>50 Years

0 –30 mm/hr

Reportable Units

mm/hr

Critical Value

Not defined for this assay

Reasons for Rejection

Other:

QNS, contaminated, improperly labeled, improper specimen type

Specimen Stability

Ambient

24 Hours

Refrigerated    (4oC to 8oC)

24 Hours

Methodology/Method Description

Alcor iSED® – The iSED® analyzer, manufactured by Alcor Scientific Inc., uses quantitative capillary photometry (aggregation) to measure erythrocyte sedimentation rate (ESR) faster than traditional methods by capturing the kinetics of Red Blood Cell aggregation in a controlled testing environment during the most critical phase of sedimentation, commonly referred to as the lag or Rouleaux formation phase.

CPT Codes

85652