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A Haemoglobin test measures the concentration of haemoglobin in a blood sample. Haemoglobin is the protein in red blood cells that transports oxygen from the lungs to various tissues and organs throughout the body. Thus, maintaining adequate haemoglobin levels is essential for supplying tissues with the oxygen they need to survive.
Low or high haemoglobin levels can impair the body's ability to provide sufficient oxygen to cells, leading to potential health issues. Therefore, your doctor might order a Haemoglobin test if you have symptoms of low or high haemoglobin levels. Monitoring the haemoglobin levels helps doctors diagnose blood disorders and other conditions. The Haemoglobin test is commonly done to diagnose anaemia, a condition characterised by insufficient haemoglobin or unhealthy red blood cells. This test also helps determine the cause of anaemia, assess its severity, and monitor how well the anaemia is responding to treatment.