What does sedimentation rate mean Meaning and Definition
What does sedimentation rate mean
Pronunciation
/ˈsɛdɪmɛntˈeɪʃən reɪt/
Part of Speech
Noun
Definition
A laboratory test that measures the rate at which red blood cells settle to the bottom of a test tube, often used to help diagnose and monitor inflammatory and infective diseases.
Examples
- The doctor ordered a sedimentation rate test to determine the severity of the patient’s arthritis.
- The sedimentation rate was elevated, indicating the presence of an underlying infection.
Synonyms
- Erythrocyte sedimentation rate
- ESR
Antonyms
- None
Additional Information
The sedimentation rate is a non-specific test, meaning it can be influenced by a variety of factors, including age, sex, and certain medical conditions. It is often used in conjunction with other diagnostic tests to confirm a diagnosis. The normal range for sedimentation rate varies depending on the individual and the laboratory performing the test.
In some cases, an elevated sedimentation rate may indicate the presence of an underlying condition, such as rheumatoid arthritis, lupus, or infection. However, a normal sedimentation rate does not necessarily rule out the presence of disease.
Etymology
The term “sedimentation rate” comes from the Latin words “sedimentum,” meaning “settling,” and “ratio,” meaning “rate.”
Usage Notes
The sedimentation rate is often used as a screening test to monitor disease activity and response to treatment. It is commonly used in conjunction with other diagnostic tests, such as complete blood counts and inflammatory markers.
Cultural References
The sedimentation rate has been mentioned in various medical dramas and documentaries, including “House M.D.” and “Grey’s Anatomy.”
Idiomatic Expressions or Phrases
- None
Related Words or Phrases
- C-Reactive Protein (CRP)
- Erythrocyte sedimentation rate (ESR)
Collocations
- Sedimentation rate test
- Elevated sedimentation rate
Frequency of Use
The sedimentation rate is a commonly used diagnostic test in medical settings, with an estimated 10-20 million tests performed annually in the United States alone.
Common Misspellings
- Sedementation rate
- Sedimentation rae