A child has an elevated antistreptolysin O (ASO) titer. Which combination of symptoms, in conjunction with this finding, would confirm a diagnosis of rheumatic fever?
a. Subcutaneous nodules and fever
b. Painful, tender joints and carditis
c. Erythema marginatum and arthralgia
d. Chorea and elevated sedimentation rate
ANS: B
The presence of two major Jones criteria would indicate a high probability of rheumatic fever.
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