Sanders et al developed a scheme for determining the likelihood of a diagnosis. Although the scale was developed for acute transfusion reactions, the same approach can be applied to other diagnoses. The authors are from St. Jude Children's Research Hospital, University of Tennessee and McMaster University.
Condition Being Considered
Alternative Diagnosis
Attribution
convincing evidence present
ruled out (definitely absent)
definite
most findings consistent with
not plausible
probable
some features present
possible and competing
possible
inconsistencies present (in timing, findings, etc.)
probable
unlikely
ruled out (definitely absent)
undoubtedly present
unrelated
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