The mnemonic
J-O-N-E-S
What each word stands for
- JJoints: migratory polyarthritis
- OCarditis (the heart shape, O)
- NNodules: subcutaneous
- EErythema marginatum
- SSydenham chorea
Why it matters clinically
Diagnosis needs evidence of prior streptococcal infection plus two major or one major and two minor criteria.
Where it stops being reliable
Covers major criteria only; minor criteria and the revised high-risk population thresholds are not captured.
Teaching aid, still awaiting independent review. Confirm facts in a standard source.