The answers come from
Anesthesia & You... Anesthesia for Ambulatory Surgery, an informational document prepared by the American Society of Anesthesiologists through the cooperative efforts of the Society's Committees on Communications and the Committee on Ambulatory Surgical Care.

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How will I meet my anesthesiologist?
Your anesthesiologist or an associate will interview you before your anesthesia to gather the information needed to evaluate your general health. This interview may be a telephone call, a visit to the facility or a visit in the office. Laboratory tests may be ordered, and other medical, surgical and anesthetic records will be reviewed. You may be asked to fill out a questionnaire about your previous anesthetic experiences and medical conditions, medications and allergies you may have. If you have particular concerns, you should discuss them with the anesthesiologist.