Hemoglobin

The hemoglobin concentration is an important criterion for the diagnosis and differentiation of anemias, erythrocytoses and polycythemias.

Reference Ranges

Women12.3 - 15.3 g/dL7.62 - 9.48 mmol/L
Men14.0 - 17.5 g/dL8.67 - 10.8 mmol/L
Newborn15.2 - 23.5 g/dL9.42 - 14.6 mmol/L
Baby10.1 - 12.9 g/dL6.26 - 7.99 mmol/L
Infant10.8 - 12.8 g/dL6.69 - 7.93 mmol/L
Children11.1 - 14.3 g/dL6.88 - 8.86 mmol/L
Each laboratory should check if the reference ranges are transferable to its own patient population and determine own reference ranges if necessary. For diagnostic purposes, the results should always be assessed with the patient’s medical history, clinical examinations and other findings.

Increased in

  1. Erythrocytosis
  2. Impaired gas exchange through the lungs

Decreased in

  1. Anemia
  2. Hemorrhage
  3. Hemolysis
  4. Result of impaired blood formation in bone marrow

Conversion

Use our conversion tool to quickly convert between conventional units and SI units

g/dL
mmol/L

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