Hurricane Sandy was swirling northward, four days before landfall, and at the Sea Crest Health Care Center, a nursing home overlooking the Coney Island Boardwalk in Brooklyn,workers were gathering medicines and other supplies as they prepared to evacuate. Then the call came from health officials: Mayor....Bloomberg,acting on the advice of his aides and those of Gov. Andrew M. Cuomo,recommended that nursing homes and adult homes stay put. The 305 residents would ride out the storm.The same advisory also took administrators by surprise at the Ocean Promenade nursing home,which faces the Atlantic Ocean in Queens. They canceled plans to move 105...