A 67-year-old woman with idiopathic pulmonary fibrosis was admitted for new-onset cough with bloody sputum following anorexia and vomiting. She had anemia, 6.5 mg/dL serum creatinine, microscopic hematuria without albuminuria, 1:80 ANA titer, 1:160 perinuclear ANCA titer, and a 63-U myeloperoxidase antibody. How do you interpret the results?