Adverse event

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Adverse Event

An Adverse Event (pronounced: ad·verse e·vent /ˈadvərs/ /iˈvent/) is a term used in medicine and pharmacology to describe an undesired or harmful occurrence in a patient, which may or may not be associated with the use of a medical intervention, including medication, surgery, or other therapy.

Etymology

The term "Adverse Event" originates from the Latin words "adversus" meaning "opposite" or "against", and "eventus" meaning "outcome" or "result". It was first used in the medical context in the mid-20th century.

Definition

An Adverse Event can be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure. This can include abnormal laboratory findings, symptoms, or diseases.

Classification

Adverse Events can be classified into several categories, including Adverse Drug Reactions, Medical Errors, and Postoperative Complications. They can also be classified based on severity, from mild to severe or life-threatening.

Related Terms

  • Adverse Drug Reaction: A response to a drug which is noxious and unintended, and which occurs at doses normally used in man for the prophylaxis, diagnosis, or therapy of disease, or for the modification of physiological function.
  • Medical Error: An act of omission or commission in planning or execution that contributes or could contribute to an unintended result.
  • Postoperative Complication: Any deviation from the normal postoperative course.

See Also

External links

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