The nurse is reading the chart of a child diagnosed with rheumatic fever. Which of the following diagnostic findings indicates this condition?
A) Low white blood cell (WBC) count
B) Elevated erythrocyte sedimentation rate (ESR), commonly known as "sed rate"
C) Negative C-reactive protein (CRP)
D) Low antistreptolysin-O (ASO) titer
B
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Diagnostic tests with the following results may indicate rheumatic fever (not all findings need be present): elevated WBC count, elevated ESR, commonly known as "sed rate," positive CRP, and elevated ASO titer.
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