Question

A 46-year-old man has ferritin 18 ng/mL, Hgb 11.5 g/dL, MCV 74 fL. According to guidelines, which ferritin threshold supports the diagnosis of iron deficiency anemia?

Accepted Answer

<45 ng/mL

Answer

<15 ng/mL only

Answer

<100 ng/mL in all adults

Answer

<30 ng/mL only in men

Answer

<200 ng/mL

Practice question

A 46-year-old man has ferritin 18 ng/mL, Hgb 11.5 g/dL, MCV 74 fL. According to guidelines, which ferritin threshold supports the diagnosis of iron deficiency anemia?