A hospital is an institution for health care providing patient treatment by specialized staff and equipment, and often but not always providing for longer-term patient stays. http://en.wikipedia.org/wiki/Hospital

Inpatient care is the care of patients whose condition requires hospitalization. Progress in modern medicine and the advent of comprehensive out-patient clinics ensure that patients are only admitted to a hospital when they are extremely ill, have had an accident or severe trauma.http://en.wikipedia.org/wiki/Inpatient_care