A 38-year-old premenopausal female presents with fatigue and…

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A 38-yeаr-оld premenоpаusаl female presents with fatigue and decreased exercise tоlerance.She reports heavy menstrual periods. Physical exam is unremarkable except for pallor of skin.Laboratory results reveal:Hemoglobin: 9.2 g/dL (normal range 12- 16 g/dL)MCV: 72 fL (normal range 80-100 fL)Ferritin: 8 ng/mL (normal range 30-300 ng/mL)Serum iron: 25 mcg/dL (normal range 60-170 mcg/dL)TIBC: 460 mcg/dL (normal range 250-450 mcg/dL)Transferrin saturation: 5% (normal range 20-50%)Serum folate 4 ng/mL (normal range 2-20 ng/mL)Vitamin B12 302 pg/mL (normal range 200–900 pg/mL) Which of the following is the most appropriate initial pharmacologic therapy?

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