Question

A 58-year-old man with iron-deficiency anemia (Hgb 10.8 g/dL) has serum ferritin 28 ng/mL. Which statement is most consistent with current guidance?

Accepted Answer

Ferritin <45 ng/mL supports iron deficiency in anemia

Answer

Ferritin <15 ng/mL is required to diagnose IDA

Answer

Ferritin thresholds are not useful

Answer

Soluble transferrin receptor must be elevated to diagnose IDA

Answer

Bone marrow iron is required in all cases

Practice question

A 58-year-old man with iron-deficiency anemia (Hgb 10.8 g/dL) has serum ferritin 28 ng/mL. Which statement is most consistent with current guidance?