At admission, his blood tests showed microcytic anemia (Hb 6.6 g/dL, normal range 13 to 16 g/dL) with iron deficiency (9.0 mcg/dL, reference values 60–160 mcg/dL) and an increase of C-Reactive Protein (CRP 27 mg/dL, normal range < 0.5 mg/dL). Here, CRP is linked to anemia.