Resorts at Chester River Manor. Resorts at Chester River Manor is looking for reliable GNA's to pick up weekend shifts at one of our Long-Term Care Facilities in Chestertown Maryland. The Geriatric Nursing Assistant (GNA) serves as a source of emotional and physical support while assisting residents with their activities of daily living. Under the supervision of the RNs and LPNs, the Geriatric Nursing Assistant ( GNA ) provides the highest qualit...