WHAT IS BONE MARROW ASPIRATION ANALYSIS TEST?

WHAT IS BONE MARROW ASPIRATION ANALYSIS TEST?

Bone marrow is the soft, organic, spongelike material contained in the medullary cavities, long bones, and some Haversian canals and within the spaces between trabeculae of cancellous bone. It is composed of red and yellow marrow, with the chief function being the production of erythrocytes, leukocytes, and platelets. Only the rusty, red marrow produces blood cells. The yellow marrow is formed of connective tissue and fat cells, which are inactive. During infancy and childhood, bone marrow is primarily red marrow, but in the adult, 50% is red marrow. The bone marrow aspiration procedure is a way to obtain a sample of bone marrow by needle. A stained blood smear of the sample is evaluated for bone marrow morphology and examination of blood cell erythropoiesis, cellularity, differential cell count, bone marrow iron stores, and M:E ratios. This test is used mainly in the diagnosis and management of anaemia, fever, leukaemia, lymphoma, pancytopenia, and thrombocytopenia. 

 

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