KANSAS CITY, Mo. - The Eighth Circuit U.S. Court of Appeals on July 2 rejected a Missouri hospital's claims that an arbitrator exceeded his authority by ordering reinstatement and back pay beyond a union's decertification (Midwest Division - LSH, LLC, doing business as Lee's Summit Medical Center v. Nurses United for Improved Patient Care, CAN/NNOC, No. 12-2229, 8th Cir.; 2013 U.S. App. LEXIS 13482).