Hemoglobin is an iron-containing protein in red blood cells responsible for transporting oxygen from the lungs to tissues and carrying carbon dioxide back to the lungs.

The Hb test is a routine part of a Complete Blood Count (CBC).

Clinical uses include:

Diagnosing anemia and its severity.

Monitoring chronic conditions like kidney disease or blood disorders.

Assessing overall health during routine checkups.

Evaluating blood loss after surgery or injury.

The test is performed using a blood sample.

Analyte: Hemoglobin concentration in blood.

Normal Range:

Men: 13.5–17.5 g/dL

Women: 12.0–15.5 g/dL

Children: 11.0–13.5 g/dL

Infants: 9.5–13.0 g/dL

Low Hb: Suggests anemia, blood loss, nutritional deficiencies (iron, B12, folate), or chronic disease.

High Hb: May indicate dehydration, lung disease, smoking, or polycythemia.

Clinical Use:

Detects and monitors anemia.

Assesses oxygen-carrying capacity.

Provides supportive information for overall health evaluation.