What are the Hb level thresholds for an anemia diagnosis in the US?

Updated: Nov 26, 2019
  • Author: Joseph E Maakaron, MD; Chief Editor: Emmanuel C Besa, MD  more...
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Usually, thresholds in the United States are slightly higher. Anemia is suggested in males with Hb levels less than 13.5 g/dL and in females with Hb levels less than 12.5 g/dL. Higher values are anticipated in individuals living in altitudes significantly above sea level. Conditions with an increase in plasma volume, such as during the last trimester of pregnancy, are associated with lower values without an existent anemia, because the red cell mass is normal.

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