With relation to the Sun, it does, but since the Sun is moving, the Earth moves in a helixal orbit. But, the distance from the Earth to the Sun is 92,957,130 miles, so the circumfrence of that circle would be 584,066,873 miles.
Ambulatory strictly means the ability to walk but in the context of surgery, it refers to patients who are able to leave the hospital the same day as the surgery, without being admitted. Ambulatory surgery is referred to by other names, commonly called minimally invasive surgery, outpatient surgery or same day surgery.
Ambulatory care sensitive conditions are health conditions where appropriate ambulatory care prevents or reduces the need for hospital admission, such as diabetes or chronic obstructive pulmonary disease. 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. Other typ