Haemoglobin (Hb) is a vital protein in red blood cells responsible for transporting oxygen from the lungs to the rest of the body and returning carbon dioxide from the tissues back to the lungs. It gives red blood cells their characteristic color and is essential for cellular respiration.

  • High Haemoglobin Levels: Elevated levels can occur in conditions like polycythemia vera, chronic lung disease and smoking, dehydration, or living at high altitudes.
  • Low Haemoglobin Levels: Low levels are indicative of anaemia, which can result from a variety of causes including iron deficiency, chronic diseases, blood loss, or bone marrow problems.

Haemoglobin (Hb)

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