10 SEPT. 2012 -- CREVE COEUR, Mo. -- Advanced ICU Care Dr. Ricardo Hernandez (left), and critical care RN Candice Griewing discuss treatment options as they monitor the status of an patient in an intensive care unit of hospital that utilizes the monitoring services offered by the Creve Coeur, Mo.-based company at the organization's offices Monday, Sept. 10, 2012. The firm's doctors and nurses monitor hospital intensive care units in 12 states. Photo © copyright 2012 Sid Hastings.