Objective. Determine the implicit rationing of nursing care and its relationship with the work environment. Material and Methods. Descriptive and Correlational, 205 nurses. Instruments: BERNCA & PES-NWI. Results. Element of rationed care was activities of daily life M=59.91 (SD=16.54). The contributing factor was foundations of nursing M=67.67 (SD=17.01). Factor, staffing and supply of resources with elements of rationed care in everyday activities. (rs=.158, p=.05), care and support (rs=.139, p=.05), rehabilitation, instruction and education (rs=.247, p=.01) and BERNCA index (rs=.244, p=.01). Nursing technician rations less the monitoring care and safety (χ²=10.049, p=.007). The contributing factor in the general nurse was foundations in nursing (χ² =6.778, =.034). General Surgery performs more daily life activities (χ²=30.132, p=.001); internal medicine more rehabilitation, instruction and education (χ²=19.206, p=.001). Conclusions. These results will enable us to establish improvement projects to strengthen the elements of rationed care.