For a brief introduction and guide to abbreviations, see Laboratory Tests: General Remarks.
Reference range, target level, or decision threshold
Men: 4,200,000-5,400,000/microL (4.2-5.4 Tera/L)
Women: 3,500,000-5,200,000/microL (3.5-5.2 Tera/L)
Interpretation of results
↓ Anemias, overhydration
↑ Polycythemia vera, secondary and relative polycythemias, thalassemia