A patient's significant life events, such as the diagnosis of cancer, coupled with critical developmental milestones provide particular challenges to nurses caring for young adults. A case study format is used to identify nursing care priorities throughout the diagnosis and treatment of a young adult male with non-Hodgkin's lymphoma. Diagnosis and treatment protocols are discussed to provide a background for nursing assessment and interventions. Nursing implications related to the treatment protocol are incorporated as are implications based on the physical and psychological impact of the disease and necessary life-style changes. Stressors created by the disease and treatments are identified, and the support of patient coping strategies and continued achievement of developmental tasks are addressed.