A 70-Year-Old Female Presents to Your Office Complaining of Easy

A 70-year-old female presents to your office complaining of easy fatigability, exertional dyspnea and weight loss.  She also complains of frequent falls.  Physical examination reveals symmetrically decreased vibratory sensation to the lower extremities.  Her hemoglobin is 7.8 g/dL and a peripheral blood smear shows hypersegmented neutrophils.  Which of the following is the best treatment for this patient?

A) Iron preparations
B) Vitamin B12
C) Pyridoxine
D) Vitamin C
E) Folic acid
F) Erythropoietin
G) Filgrastim
H) Interleukin-2
I) Antithymocyte globulin

Correct Answer:

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