New York City's Bellevue Hospital and its remaining 700 patients have struggled along in the aftermath of Sandy -- with failing power, partially lighted halls, no computers, making it difficult to locate patients within the facility

Lights out, computers down, long walks up and down dark stairwells and hallways to treat patients -- these are the conditions doctors, nurses, aides and staff face at Bellevue, as well as at Metropolitan Hospital, another city hospital that is running on backup generator power.

A spokesman at Mount Sinai Medical Center told ABC News that when Mount Sinai could no longer reach anyone at Bellevue, it sent a medical team of eight to Bellevue. When the group arrived, two cardiac physicians told the Mount Sinai team they had two very serious patients that needed help.

Both of the these patients will be moved to Mount Sinai, which is preparing for more patients.

Today Bellevue nurses could be seen walking up and down stairs with food trays and medicine. Some had to hike to the 17th floor, where some patients have "serious conditions."

Up and down the stairs, the evacuation of patients was under way.

But many patients still remain at Bellevue, according to city officials and hospital staff.

Police are stationed throughout Bellevue, and are limiting visitors' access to the main lobby entrance unless they are there to see family members.