A 10-year-old girl develops subcutaneous nodules over the skin of her arms and torso 3 weeks...

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A 10-year-old girl develops subcutaneous nodules over the skin of her arms and torso 3 weeks after a bout of acutepharyngitis. She manifests choreiform movements and begins to complain of pain in her knees and hips, particularly with movement. A friction rub is heard on auscultation of the chest. Which of the following serum laboratory findings is most characteristic of the disease affecting this patient? (A) Elevated cardiac troponin I level (B) Positive ANA test (C) Elevated creatinine level (D) Positive rapid plasma reagin test (E) Elevated antis treptolys in O level A 10-year-old girl develops subcutaneous nodules over the skin of her arms and torso 3 weeks after a bout of acutepharyngitis. She manifests choreiform movements and begins to complain of pain in her knees and hips, particularly with movement. A friction rub is heard on auscultation of the chest. Which of the following serum laboratory findings is most characteristic of the disease affecting this patient? (A) Elevated cardiac troponin I level (B) Positive ANA test (C) Elevated creatinine level (D) Positive rapid plasma reagin test (E) Elevated antis treptolys in O level

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