P-R PHOTO/GABE DICKENS A motorist on Cornelia Street in the City of Plattsburgh waves to members of the New York State Nurses Association as they picket on Wednesday, emphasizing their desire for raises and guaranteed staffing levels for members who work at CVPH Medical Center. "It's not safe," Tammy Grom, a mentor for new nurses, said of decreasing the ratio of nurses to patients on some floors of the hospital. CVPH initiated the practice last fall in response to a revenue shortfall of some $400,000. Patient safety is paramount, said CVPH Vice President of Human Resources Michelle LeBeau. She also said the union didn't discuss that matter at all in recent negotiations.