Class I - Conditions for which there is evidence and/or general agreement that a given diagnostic evaluation, procedure or treatment is beneficial, useful, and effective.
Class II - Conditions for which there is conflicting evidence and/or a divergence of opinion about the usefulness/efficacy of a diagnostic evaluation, procedure or treatment.
Class II A - Weight of evidence/opinion is in favor of usefulness/efficacy.
Class II B - Usefulness/efficacy is less well established by evidence/opinion.
Class III - Conditions for which there is evidence and/or general agreement that a diagnostic evaluation/procedure/treatment is not useful/effective and in some cases may be harmful.
Recommendation Grading System
Sign out tools
Clinical decision rules list
Reexamination sample documentation
Mass casualty incident triage
Types of statistical tests
Software development
Kaji Review Questions 