Onset
Onset (Medicine)
Onset (/ˈɒnsɛt/; from Old English onsettan, "to begin") refers to the beginning or start of a medical condition or symptoms. It is a term widely used in medicine to describe the time frame within which symptoms first start to appear.
Etymology
The term "onset" originates from the Old English onsettan, which means "to begin". It has been used in the English language since the 14th century.
Usage in Medicine
In medicine, "onset" is used to describe the beginning or start of a medical condition. It is often used in conjunction with a time frame, such as "sudden onset", "rapid onset", or "gradual onset", to describe how quickly the symptoms of a condition began to appear.
For example, in the case of a heart attack, a patient might experience sudden onset chest pain. On the other hand, a condition like Alzheimer's disease might have a gradual onset, with symptoms slowly appearing over a period of several years.
Related Terms
- Acute onset: Refers to symptoms that begin suddenly and worsen rapidly.
- Chronic onset: Refers to symptoms that begin slowly and last for a long time.
- Subacute onset: Refers to symptoms that are less severe than acute symptoms but more severe than chronic symptoms.
- Insidious onset: Refers to symptoms that begin so gradually that they are not noticed until they have become serious.
External links
- Medical encyclopedia article on Onset
- Wikipedia's article - Onset
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