When Superstorm Sandy came ashore, Bellevue Hospital was quickly submerged. Inspectors from the Federal Emergency Management Agency marked the flood line in the basement with orange tape or spray paint. In some areas, water was 14 feet deep. Fred Mogul/NPR hide caption

itoggle caption Fred Mogul/NPR

Doctors' use of CT head scans for hospitalized patients didn't change when the prices were revealed at the time an order was being made. Wikimedia Commons hide caption

itoggle caption Wikimedia Commons

Nurse Corean McClinton, left, talks about pain management with Sherry Webb at the Sickle Cell Disease Center in the Truman Medical Center, in Kansas City, Mo., in 2007. Dick Whipple/Associated Press hide caption

itoggle caption Dick Whipple/Associated Press

Physician assistants Scott Fillman (left) and Andrew Hunadi get ready to see patients with flu symptoms, in a tent erected just outside the emergency entrance at the Lehigh Valley Hospital in Allentown, Pa. Matt Rourke/AP hide caption

itoggle caption Matt Rourke/AP

Four-year-old Gabriella Diaz gets a flu shot at the Whittier Street Health Center in Boston, Mass., on Wednesday, the same day the city declared a public health emergency. Charles Krupa/ASSOCIATED PRESS hide caption

itoggle caption Charles Krupa/ASSOCIATED PRESS

Visitors to one Kansas City hospital will no longer be able to buy a Big Mac on the premises. Keith Srakocic/AP hide caption

itoggle caption Keith Srakocic/AP

Drama ensues when doctors work to save patients bleeding from traumatic injuries. Ian Roberts hide caption

itoggle caption Ian Roberts

Researchers find that more than 40 percent of surgical complications happen after patients leave the hospital. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Barbara Fleming is evacuated from Bellevue Hospital by Victor Rivera in the aftermath of Superstorm Sandy in New York on Oct. 31. Carlo Allegri/Reuters/Landov hide caption

itoggle caption Carlo Allegri/Reuters/Landov

Ambulances line up outside New York University Langone Medical Center to evacuate patients after backup generators failed when Sandy knocked out power in Lower Manhattan Monday. John Minchillo/AP hide caption

itoggle caption John Minchillo/AP

Denver Health has a network of clinics to keep track of patients discharged from its hospital. Denver Health hide caption

itoggle caption Denver Health