Sedimentation Rate, Modified Westergren Blood Test
Test Code: 005215
Specimen Type: Blood
Sedimentation Rate, Modified Westergren Blood Test (Labcorp)
The Erythrocyte Sedimentation Rate (ESR) or Sed Rate test is used to measure inflammation in the body. The test measures the rate at which red blood cells settle in a sample. If the cells settle faster, it indicates a higher level of specific proteins which are present in the blood when there is inflammation in the body. Inflammation is part of the body's response to injury or infection. The Sed Rate test can help determine if inflammation is present but not where or what the cause is. When used in conjunction with other test results, the Sed Rate test can aid in the diagnosis of various infections, cancers and autoimmune disorders.
This test is typically ordered when someone is suspected of having a condition which is causing inflammation or to monitor treatment for various conditions which cause inflammation. The ESR Test is typically ordered with other tests such as a C-Reactive Protein (CRP).
Turnaround time for the ESR test is typically 1 business day.
Where can I find a Sedimentation Rate, Modified Westergren test near me?
Check our lab finder to locate a collection site in your area.
Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Sedimentation rate testing is time-sensitive and specimens must be received and processed by the lab within 24 hours of collection.
To avoid delays please observe the following:
- Specimens should be collected as late in the day as possible.
- Specimens should not be collected on a Friday or the day before a holiday.
- Avoid selecting 3rd party draw sites as these may require longer transportation time for specimens.
If the requirements for the sedimentation rate are not convenient, please consider the C-Reactive Protein test as an alternative.