Problem: An 80-year-old man is seen for an annual physical examination. He complains of shortness of breath on exertion and is often tired. His stool is black. Laboratory data are:
Hb: 8.2 g/dL
Hct: 30%
WBC count: 4.2 × 10^9/L
WBC differential:
Neutrophils: 60%
Lymphocytes: 31%
Monocytes: 7%
Eosinophils: 2%
Basophils: 0%
RBC count: 4.0 × 10^12/L
RDW: 20%
Platelet count: 400 × 10^
Q1. What is the most probable type of anemia seen in this patient?
Q2. What is the cause of the anemia seen in this patient?