Contemporary Clinical Immunology and Serology 1st Edition by Kate Rittenhouse Olson,Ernesto DeNardin

Exercise 3

A 45-year-old woman reported to the hospital with swelling in her wrists, knees, and fingers. She reported that her family had a history of SLE. An ANA was performed, and her sera showed homogeneous staining with a titer of 1:20. Latex agglutination for rheumatoid factor was performed, and her titer was 8000. She had proteinuria.
A) The patient's symptoms and lab results suggest SLE.
B) The patient's symptoms and lab results suggest Lyme disease.
C) The patient's symptoms and lab results suggest rheumatoid arthritis.
D) None of the above.