Evidence-based practice (or evidence based medicine) is the conscientious, explicit, and judicious use of current best evidence in making decisions about the care of individual patients. The practice of evidence based medicine means integrating individual clinical expertise with the best available external clinical evidence from systematic research (Sackett, 1996, BMJ).
Image Source: UNC Health Sciences Library, "Evidence Based Practice Resources," https://hsl.lib.unc.edu/services/evidence-based-practice-resources
In addition to these resources, you may have access to additional subscription-based databases, such as UpToDate, through your healthcare employer. You may also find additional subject-specific guidelines from non-profit or professional organizations like the Registered Nurses' Association of Ontario (RNAO) mentioned above.