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Test Code:
ESR

Order Name:
ESR

 
Useful For:
To detect the presence of inflammation caused by one or more conditions such as infections, tumors or autoimmune diseases; to help diagnose and monitor specific conditions such as temporal arteritis, systemic vasculitis, polymyalgia rheumatica, or rheumatoid arthritis.
 
Methodology:
Photometrical rheoscope
 
AliasesName:
Sedimentation Rate
 
 
 
Test Code:
ESR

Order Name:
ESR

 
Collection Specimen Or Container:
Blood/ K3 EDTA (K3E) (Lavender Top) 3 mL, 1 tube
 
Specimen Testing Type:
Blood, minimum volume 0.5 mL
 
Sub Mission Container:
Original tube
 
Rejection Criteria:
Clotted specimen will be rejected.
 
Specimen Stabillity:
Specimen Type Temperature Time
Whole blood, EDTA Room temperature, 18oC to 25oC 4 hours
 
 
 
Test Code:
ESR

Order Name:
ESR

 
Method detail:
Photometrical rheoscope
 
Schedule:
Tested Daily (24 hours)
 
Turnaround Time:
Collected specimen to report within 1 hour
 
Performing Location:
Hematology, Laboratory Department Tel. 17254
 
Specimen Retention Time:
5 days
 
 
 
Test Code:
ESR

Order Name:
ESR

 
 
Clinical Information:
Erythrocyte sedimentation rate (ESR or sed rate) is a test that indirectly measures the degree of inflammation present in the body. The test actually measures the rate of fall (sedimentation) of erythrocytes (red blood cells) in a sample of blood that has been placed into a tall, thin, vertical tube. Results are reported as the millimeters of clear fluid (plasma) that are present at the top portion of the tube after one hour.When a sample of blood is placed in a tube, the red blood cells normally settle out relatively slowly, leaving little clear plasma. The red cells settle at a faster rate in the presence of an increased level of proteins, particularly proteins called acute phase reactants. The level of acute phase reactants such as C-reactive protein (CRP) and fibrinogen increases in the blood in response to inflammation.Inflammation is part of the body's immune response. It can be acute, developing rapidly after trauma, injury or infection, for example, or can occur over an extended time (chronic) with conditions such as autoimmune diseases or cancer.The ESR is not diagnostic; it is a non-specific test that may be elevated in a number of these different conditions. It provides general information about the presence or absence of an inflammatory condition.There have been questions about the usefulness of the ESR in light of newer tests that have come into use that are more specific. However, ESR test is typically indicated for the diagnosis and monitoring of temporal arteritis, systemic vasculitis and polymyalgia rheumatica. Extremely elevated ESR is useful in developing a rheumatic disease differential diagnosis. In addition, ESR may still be a good option in some situations, when, for example, the newer tests are not available in areas with limited resources or when monitoring the course of a disease.
 
Reference Value:
Sex Age Reference Value Unit
Male <50 years 0 - 14 mm/hr
>50 years 0 - 19 mm/hr
Female <50 years 0 - 19 mm/hr
>50 years 0 - 29 mm/hr
 
Clinical Reference:
https://labtestsonline.org (Retrieved: 22 Jan 2019)