Gabrielle Giffords Upgraded to 'Serious' Condition Change likely occurred because she is now breathing on her own By Evann Gastaldo, Newser Staff Posted Jan 16, 2011 10:20 PM CST 1 comment Comments This undated file photo provided by the Office of Rep. Gabrielle Giffords, shows Democratic Rep. Gabrielle Giffords of Arizona's 8th Congressional District. (AP Photo/Office of Rep. Gabrielle Giffords, File) (Newser) – More good news for Gabrielle Giffords: Doctors upgraded her from critical to serious condition today, the Arizona Republic reports. A spokesperson says such a change typically happens when a patient stops using a ventilator and can breathe on her own, as Giffords did yesterday. Patients are listed in critical condition if their vital signs are unstable and their indicators unfavorable; serious condition, on the other hand, indicates that while the vital signs could still be unstable, their indicators are "questionable." Click for more on the recent improvements in Giffords' condition.