Hemoglobin Normal Range
What does it measure?
Hemoglobin measures the protein in red blood cells that carries oxygen around your body.
Reference Range
Note: Reference ranges can vary slightly between different laboratories. Always refer to the range printed on your specific lab report.
Critical Values
Values below 7 g/dL or values above 20 g/dL are considered critical and require immediate medical attention.
Interpreting Results
↑High Hemoglobin
A high result can occur with dehydration, smoking, or lung/heart conditions.
↓Low Hemoglobin
A low result may indicate anemia, blood loss, or a nutritional deficiency.
Frequently Asked Questions
What is a normal Hemoglobin level?
A normal Hemoglobin level for most adults is 13–17 g/dL. This is a general reference range, and your specific laboratory may use slightly different values.
What does high Hemoglobin mean?
A high Hemoglobin can occur with dehydration, smoking, or lung/heart conditions. Always talk to your doctor about what a high result means in your specific context.
What does low Hemoglobin mean?
A low Hemoglobin may indicate anemia, blood loss, or a nutritional deficiency. Always talk to your doctor about what a low result means in your specific context.
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