Home Biomarkers Hemoglobin

Complete Blood Count (CBC)

Hemoglobin (HGB)

Oxygen-carrying protein in red blood cells. Low hemoglobin is the defining marker of anemia.

Units

g/dL

Reference (Male)

13.5 – 17.5 g/dL

Reference (Female)

12.0 – 15.5 g/dL

Aliases

Hb, Haemoglobin

What it measures

Oxygen-carrying protein in red blood cells. Low hemoglobin is the defining marker of anemia.

What a high value can mean

Possible polycythemia, dehydration, smoking, high-altitude living, or chronic lung disease.

What a low value can mean

Iron-deficiency anemia, blood loss, B12/folate deficiency, chronic disease, kidney disease.

Conditions it helps assess

  • Anemia
  • Polycythemia
  • Iron deficiency
  • Chronic disease

How our AI interprets it

Our AI lab test analyzer always cross-checks hemoglobin with MCV, MCH, ferritin, and reticulocyte counts before flagging anemia type.

Reading these numbers in context

Reference ranges describe the central 95 % of a healthy reference population — 5 % of perfectly healthy people fall outside any given range by definition. A single mildly abnormal value is rarely meaningful on its own. blood-test.life always interprets values together with related biomarkers before flagging.

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