A 34-year-old woman, G1P0, at 8 weeks’ gestation comes to the obstetrician for an antenatal appointment. Laboratory studies show an MCV of 71 and hemoglobin of 9.8 g/dL. She currently takes a multivitamin. She is prescribed an iron supplement. Three weeks later, laboratory studies show an MCV of 72 and hemoglobin of 10 g/dL. Which of the following is most likely to be seen in this patient?
Acanthocytes
Decreased serum ferritin
Increased red cell distribution width
Schistocytes
Target cells
