Gross hemolysis Clotted samples QNS Room Temperature samples > 24 hours old Refrigerated samples > 36 hours
Collection Comments
Invert tube 8-10 times to mix blood with anticoagulant. Please send samples refrigerated. Room temperature samples must be tested within 24 hours of collection.
The Sed Rate (sedimentation rate), also known as the ESR (erythrocyte sedimentation rate) or the Westergren ESR test, measures the distance that erythrocytes, when placed in a standard tube, sediment toward the bottom of the tube during a standard timeinterval. The erythrocyte sedimentation rate is a nonspecific marker of inflammation and may be ordered when the physician suspects the patient's symptoms may be due to an inflammatory process. Additional testing is needed to identify the location andcause of the inflammation.
Performed
Monday - Sunday; Days, Evenings, Nights
Methodology
Automated Photometry Alifax Analyzer Series
Reported
4 hours
Performing Lab
Hematology
Other Performing Labs
Arnett, Ball, and Bloomington
Synonyms
110
ESR
WSR
Westergren Sed Rate
Sedimentation Rate, Westergren
Reference Chart
Sed Rate
Age
Male (mm/hr)
Female (mm/hr)
0-50 years
0-15
0-20
50-150 years
0-20
0-30
CPT Codes
85651
LOINC Codes
NAME
LOINC
Order
Sedimentation Rate
30341-2
Result
Sed Rate
30341-2
Test Code (Outreach Synonym)
110
Catalog Code
693461
Collection
Collect
Blood, Lavender
Preferred Draw Volume
3 mL
Pediatric Collection
3 microtainers
Unacceptable Conditions
Gross hemolysis Clotted samples QNS Room Temperature samples > 24 hours old Refrigerated samples > 36 hours
Collection Comments
Invert tube 8-10 times to mix blood with anticoagulant. Please send samples refrigerated. Room temperature samples must be tested within 24 hours of collection.
The Sed Rate (sedimentation rate), also known as the ESR (erythrocyte sedimentation rate) or the Westergren ESR test, measures the distance that erythrocytes, when placed in a standard tube, sediment toward the bottom of the tube during a standard timeinterval. The erythrocyte sedimentation rate is a nonspecific marker of inflammation and may be ordered when the physician suspects the patient's symptoms may be due to an inflammatory process. Additional testing is needed to identify the location andcause of the inflammation.
