In home nursing care, professionally qualified nurses make decisions on their own which must be based on the latest scientific research. The goal of this systematic literature review was to examine if the interventions of the diagnosis "Risk of Pneumonia" as used by a home care service provider in Austria are based on scientific evidence. Based on the research question "Can the interventions of the diagnosis 'risk of pneumonia' be found in the scientific nursing literature?", four evidence-based guidelines from various databases and institutes were identified and evaluated using a standardized checklist. The result of the analysis is that the majority of the Nursing diagnosis interventions can be found in the guidelines. It is also recommended in the guidelines to advise and support clients to stop smoking and inoculate against influenza/pneumonia. Similarly, assessment tools should be used to estimate the severity of pneumonia. The intervention of oral hygiene as a prophylactic intervention against pneumonia should get particular attention.