Ambulatory care

Ambulatory care or outpatient care is medical care provided on an outpatient basis, including diagnosis, observation, consultation, treatment, intervention, and rehabilitation services. This care can include advanced medical technology and procedures even when provided outside of hospitals.[1][2][3][4][5]

Public ambulatory care facility in Maracay, Venezuela, providing primary care for ambulatory care sensitive conditions.

Ambulatory care sensitive conditions (ACSC) are health conditions where appropriate ambulatory care prevents or reduces the need for hospital admission (or inpatient care), such as diabetes or chronic obstructive pulmonary disease.[6]

Many Medical Investigations and treatments for acute and chronic illnesses and preventive health care can be performed on an ambulatory basis, including minor surgical and medical procedures, most types of dental services, dermatology services, and many types of diagnostic procedures (e.g. blood tests, X-rays, endoscopy and biopsy procedures of superficial organs). Other types of ambulatory care services include emergency visits, rehabilitation visits, and in some cases telephone consultations.[7]

Ambulatory care services represent the most significant contributor to increasing hospital expenditures and to the performance of the health care system in most countries, including most developing countries.[8][9]


Health care organizations use different ways to define the nature of care provided as "ambulatory" versus inpatient or other types of care.[7][8][10][11]

Sites where ambulatory care can be delivered include:

An examination room in a doctor's office.


Ambulatory care sensitive conditions (ACSC) are illnesses or health conditions where appropriate ambulatory care prevents or reduces the need for hospital admission. Appropriate care for an ACSC can include one or more planned revisits to settings of ambulatory care for follow-up, such as when a patient is continuously monitored or otherwise advised to return when (or if) symptoms appear or reappear.

Relatively common ACSC include:[6][13][14][15][16]

Hospitalization for an ACSC is considered to be a measure of access to appropriate primary health care, including preventive and disease management services. While not all admissions for these conditions are avoidable, appropriate ambulatory care could help prevent their onset, control an acute episode, or manage a chronic disease or condition.:[6][13][14] For Medicaid-covered and uninsured U.S. hospital stays in 2012, six of the top ten diagnoses were ambulatory care sensitive conditions.[17]

See also


  3. William Osler Health System. What is "Ambulatory Care"? Accessed 25 July 2011.
  4. Saskatoon Health Region. Programs & Services: Ambulatory Care. Accessed 25 July 2011.
  5. The Free Dictionary. Ambulatory care. Accessed 25 July 2011.
  6. 1 2 3 Canadian Institute for Health Information, Ambulatory Care Sensitive Conditions. Accessed 14 April 2014.
  7. 1 2 Canadian Institute for Health Information, Comprehensive Ambulatory Care Classification System. Accessed 25 July 2011.
  8. 1 2 Karpiel MS. "Using patient classification systems to identify ambulatory care costs." CBS Business Network. Accessed 25 July 2011.
  9. 1 2 Berman P. "Organization of ambulatory care provision: a critical determinant of health system performance in developing countries." Bulletin of the World Health Organization, 2000, 78(6).
  10. Verran JA. "Testing a classification instrument for the ambulatory care setting." Research in Nursing & Health, 9(4): 279–87, December 1986 - doi:10.1002/nur.4770090404
  11. Alberta Health and Wellness. Alberta Ambulatory Care Reporting Manual. Edmonton, April 2009.
  12. Shabarova Z. Primary Health Care in the NIS: Soviet Primary Health Care system review. Accessed 25 July 2011.
  13. 1 2 Manitoba Centre for Health Policy and Evaluation (2007-09-26). Concept: Ambulatory Care Sensitive (ACS) Conditions. Published September 26, 2007. Retrieved on 2014-04-14 from
  14. 1 2 Commonwealth Fund (date unknown). Hospitalizations for Ambulatory Care–Sensitive Conditions. Retrieved on 2014-04-14 from
  15. Lui CK, Wallace SP, A common denominator: calculating hospitalization rates for ambulatory care–sensitive conditions in California. Prev Chronic Dis 2011;8(5): A102. Accessed April 14, 2014.
  16. Zahid Ansari1 et al., Patient characteristics associated with hospitalisations for ambulatory care sensitive conditions in Victoria, Australia. BMC Health Services Research 2012, 12:475 doi:10.1186/1472-6963-12-475.
  17. Lopez-Gonzalez L, Pickens GT, Washington R, Weiss AJ (October 2014). "Characteristics of Medicaid and Uninsured Hospitalizations, 2012". HCUP Statistical Brief #183. Rockville, MD: Agency for Healthcare Research and Quality.

External links

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