title: Preoperative screening, evaluation, and optimization of the patient's medical status before outpatient surgery.
abstract: OBJECTIVE
  Preoperative evaluation and optimization of a patient's medical condition are important components of anesthesia practice. With ever increasing numbers of patients with serious comorbidities having complex procedures as outpatients, the task of gathering information and properly preparing for their care is challenging. Improvements in assessment and management can potentially reduce adverse events, improve patient and caregiver satisfaction, and reduce costs.
  
  
  RESULTS
  A growing body of literature and evidence-based practices and guidelines can assist clinicians who work in the expanding field of preoperative medicine. Care providers from various specialties in medicine are developing innovative methods, tools, and knowledge to advance science and processes. Data-driven practices are beginning to close the information gap that has plagued this field of medical practice.
  
  
  CONCLUSIONS
  Preparation of patients before surgery is a necessary and vital component of perioperative medicine. Practices are developing to guide effective interventions that benefit patients and healthcare systems. Outpatients present special challenges to preoperative assessment.
authors.affiliation: Anesthesia and Critical Care, University of Chicago, Anesthesia Perioperative Medicine Clinic, Chicago, Illinois, USA.
authors.forename: Bobbie Jean
authors.initials: BJ
authors.lastname: Sweitzer
mesh_terms: D000402:Airway Obstruction / Q000150:complications / Q000175:diagnosis; D000465:Algorithms; D000556:Ambulatory Surgical Procedures / Q000592:standards*; D000925:Anticoagulants / Q000009:adverse effects; D006348:Cardiac Surgical Procedures; D005260:Female; D017408:Guidelines as Topic; D006801:Humans; D008297:Male; D011247:Pregnancy; D011300:Preoperative Care / Q000379:methods*; D018570:Risk Assessment; D012891:Sleep Apnea Syndromes / Q000150:complications / Q000401:mortality
chemical_list: D000925:Anticoagulants