Laboratory results on a 57 year old female with a history of…

Laboratory results on a 57 year old female with a history of rheumatoid arthritis are as follows: hemoglobin 10.5 g (low), hematocrit 33% (low), MCV -88mm3 (normal) and serum ferritin is 110 (normal). The remaining laboratory results are within normal limits. The nurse practitioner diagnoses this patient with: