text_1: 75-year-old woman, hemoglobin approximately 12.0, mean corpuscular volume approximately 90, vitamin B12 level approximately 180 (200-650 is normal), and then approximately 150, intrinsic factor blocking antibody negative.  "I'm just wondering what I should do?"
text_2: 75-year-old female, vitamin B12 level approximately 180 (normal 200-650), then approximately 150. What should I do?