Objectives: To evaluate the serum iron and ferritin oncentrations in patients with chronic kidney disease (CKD) predialysis and its relation with stages of CKD and some other features. Subjects and methods: A cross-sectional study on a group of 175 patients with CKD stage 3 - 5 and a control group of 51 healthy people at Department of Nephrology and Hemodialysis, 103 Military Hospital. | JOURNAL OF MILITARY PHARMACO-MEDICINE N09-2017 SURVEY OF SERUM IRON AND FERRITIN CONCENTRATIONS IN PATIENTS WITH STAGE 3 TO 5 CHRONIC KIDNEY DISEASE Nguyen Van Hung*; Nguyen Cao Luan**; Le Viet Thang*** SUMMARY Objectives: To evaluate the serum iron and ferritin concentrations in patients with chronic kidney disease (CKD) predialysis and its relation with stages of CKD and some other features. Subjects and methods: A cross-sectional study on a group of 175 patients with CKD stage 3 - 5 and a control group of 51 healthy people at Department of Nephrology and Hemodialysis, 103 Military Hospital. Results: The average concentrations of serum iron in study group was significantly lower than control group ( ± µmol/L versus ± µmol/L), but the average concentrations of serum ferritin in study group was higher than in the control group ( ± ng/mL versus ± ng/mL) with p 5 mg/L: diagnosed as increase. * Statistical analysis: Statistical analyses were conducted using SPSS . 164 2 GFR (mL/min/ ) Ferritin (ng/mL) 5 mg/L (n = 52) ± ± hs-CRP ≤ 5 mg/L (n = 123) ± ± > ). By contrast, serum ferritin concentrations in patients who elevated hs-CRP was significantly higher than non elevated hs-CRP group with p < .