be discharged from：～退院する
walking out under her own power：自力で歩いて
in a statement released this evening：今夜発表された談話で
hopped into a black GMC Savana：黒のGMC サヴァナに乗り込んだ
she was admitted last Sunday：彼女はこの前の日曜日に入院した
sustained a concussion：脳しんとうを被った（こうむった）
Hillary Clinton leaves New York Presbyterian Hospital after treatment for potentially life-threatening blood clot
Secretary of State Hillary Clinton was discharged from New York Presbyterian Hospital this evening after spending three days undergoing treatment for a potentially life-threatening blood clot.
Earlier in the day Clinton, 65, left the Manhattan hospital, walking out under her own power, for another series of tests but returned to the hospital shortly after. She needed more tests related to her condition, the AP reported, citing unnamed officials.
Deputy Assistant Scretary of State, Philippe Reines, confirmed that Clinton was discharged in a statement released this evening. "Her medical team advised her that she is making good progress on all fronts, and they are confident she will make a full recovery. She's eager to get back to the office, and we will keep you updated on her schedule as it becomes clearer in the coming days."
Clinton wore sunglasses and hopped into a black GMC Savana with her husband, former president Bill Clinton.
Her doctors said a blood clot had formed behind her right ear in the space between her brain and skull after she was admitted last Sunday.
The secretary of state, weakened by a stomach virus, fell in her Washington DC, home last month and sustained a concussion.
Doctors had been treating her with blood thinners and said she is expected to make a full recovery.