The story
An abbreviation of alert and oriented (A&O) + assessment.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A medical assessment used to evaluate a person's alertness and mental status, incorporating open-ended questions that assess a person's memory and thinking abilities; more detailed than the AVPU scale. Full definition →
An abbreviation of alert and oriented (A&O) + assessment.
Etymology from Wiktionary, CC BY-SA 4.0.