Her blood test results indicated severe anemia with red blood cells (RBC) at 1.7 × 106/μL, hemoglobin (Hb) at 4.7 g/dL, and her blood urea nitrogen (BUN)/creatine ratio (52.1 mg/dL versus 1.29 mg/dL) indicated dissociation. This evidence concerns the gene GSTM1 and anemia.