Range
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Range (medical)
Range (pronounced: /rānj/) in the medical context refers to the extent or scope of variation or action. In medicine, it is often used to describe the normal or healthy span of values for a particular measurement in the body, such as blood pressure or body temperature.
Etymology
The term 'range' originates from the Old French 'ranger', meaning 'to place in a row, arrange'. It was later adopted into Middle English in the 14th century.
Related Terms
- Normal Range: The span within which approximately 95% of values lie in a healthy population. It is often used as a reference to determine whether a particular patient's values are normal or abnormal.
- Reference Range: A set of values used by health professionals to interpret a set of medical test results. It is usually defined as the range that 95% of the normal population falls within.
- Therapeutic Range: The concentration range in which a drug is expected to be effective without causing any serious side effects. It is also known as the therapeutic window.
- Range of Motion: The full movement potential of a joint, usually its range of flexion and extension. It is a key component in physical therapy and rehabilitation.
See Also
External links
- Medical encyclopedia article on Range
- Wikipedia's article - Range
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