I'll not only point to the example of increasing the number of specialty certifications to reduce infection rates, but also other factors that lead to job satisfaction, such as having more control over scheduling and emphasizing leadership and learning.
The authors of the APIC study researched "job-related burnout in registered nurses to determine whether it accounts, in full or in part, for the relationship between nurse staffing and patient infections acquired during hospital stays."
They determined burnout by analyzing nurse survey responses through the lens of the emotional exhaustion subscale from the Maslach Burnout Inventory-Human Services Survey (MBI-HSS). The MBI-HSS filters 22 items on job-related attitudes into emotional exhaustion, depersonalization, and personal accomplishment, identifying emotional exhaustion as the key component to burnout syndrome.
More than one-third of survey respondents got an emotional exhaustion score of 27 or greater, the MBI-HSS definition for healthcare personnel burnout.