Best test to detect iron deficiency in community is -: (A) Transferrin, (B) Serum ferritin, (C) Serum iron, (D) Hemoglobin
Answer is B. The single most sensitive tool for evaluating the iron status is by measurement of serum ferritin. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 623