title: Usefulness of red blood cell flags in diagnosing and differentiating thalassemia trait from iron-deficiency anemia.
abstract: BACKGROUND
  Thalassemia trait (THA) is an important differential diagnosis of iron deficiency anemia (IDA). The red cell distribution width (RDW) is usually elevated in IDA, but often is normal in THA.
  
  
  OBJECTIVE
  This study was conducted to determine the usefulness of red cell flags in differentiating iron deficiency anemia and thalassemia trait.
  
  
  METHODS
  Peripheral blood samples from 50 patients suffering iron deficiency anemia and 64 patients suffering thalassemia trait were used to determine red cell flags (RCF) along with complete blood count, red cell distribution width, serum iron and total iron binding capacity, ferritin and hemoglobin electrophoresis. According to the data collected in this study, the first digit of red cell flags (RCF1)=0 was almost three times higher in thalassemic patients compared to those of iron deficiency anemia. Another reverse significant difference was observed in RCF1=2 (6.3% versus 42% for thalassemia and iron deficiency anemia respectively).
  
  
  CONCLUSIONS
  We conclude that RCF findings are sensitive and specific enough to be used as an approach in differentiating iron deficiency anemia from beta-thalassemia trait.
authors.affiliation: Tabriz University Hematology and Oncology Research Center, Shahid Ghazi Ward, Imam Hospital, Iran. jeziaei@yahoo.com
authors.forename: J
authors.initials: J
authors.lastname: Eivazi-Ziaei
authors.forename: S
authors.initials: S
authors.lastname: Dastgiri
authors.forename: S
authors.initials: S
authors.lastname: Pourebrahim
authors.forename: R
authors.initials: R
authors.lastname: Soltanpour
mesh_terms: D000328:Adult; D018798:Anemia, Iron-Deficiency / Q000097:blood* / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004906:Erythrocyte Count; D004909:Erythrocyte Indices; D004912:Erythrocytes / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D012680:Sensitivity and Specificity; D017086:beta-Thalassemia / Q000097:blood* / Q000175:diagnosis*