Cited by state regulators last spring for not having enough nurses on its staff, Manatee Memorial Hospital spent most of the summer under scrutiny for an assortment of other complaints that patients made to the state. Hospital inspectors said they found problems that ranged from rusty wheels on operating room equipment to lapses in infection control and a case of bed bugs. But regulators say all issues have now been resolved. The April visit was prompted by one or more complaints to the Florida Agency for Health Care Administration. Reviewing patient records, AHCA found failures to give proper medications and prevent falls, leading to an investigation into whether the hospital had enough nurses for its workload.