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Outpatient Procedure from WikiPedia:

A patient is any person who receives medical attention, care, or treatment. The person is most often ill or injured and in need of treatment by a physician or other health care professional, although one who is visiting a physician for a routine check-up may also be viewed as a patient.

The word patient originally meant 'one who suffers'. This English noun comes from the Latin word patiens, the present participle of the deponent verb, patior, meaning 'I am suffering,' and akin to the Greek verb ??????? (= paskhein, to suffer) and its cognate noun ????? (= pathos).

An outpatient is a patient who is not hospitalized overnight but who visits a hospital, clinic, or associated facility for diagnosis or treatment. Treatment provided in this fashion is called ambulatory care.

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