The preferred site of bone marrow aspiration in adults is located at which site?

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Multiple Choice

The preferred site of bone marrow aspiration in adults is located at which site?

The site at the posterior iliac crest is preferred in adults because it gives reliable, abundant cancellous marrow with a straightforward, safe needle path. The iliac crest provides easy palpation of landmarks, allows the patient to be positioned comfortably (often prone or on the side), and minimizes risk to critical structures compared with other sites. Distal femur and proximal tibia are more commonly used in children due to growth plates and the relatively different marrow distribution in younger bones, while the sternum and anterior iliac crest carry higher risks or discomfort for routine aspiration. Thus, the posterior iliac crest remains the standard adult site for bone marrow aspiration.

The site at the posterior iliac crest is preferred in adults because it gives reliable, abundant cancellous marrow with a straightforward, safe needle path. The iliac crest provides easy palpation of landmarks, allows the patient to be positioned comfortably (often prone or on the side), and minimizes risk to critical structures compared with other sites. Distal femur and proximal tibia are more commonly used in children due to growth plates and the relatively different marrow distribution in younger bones, while the sternum and anterior iliac crest carry higher risks or discomfort for routine aspiration. Thus, the posterior iliac crest remains the standard adult site for bone marrow aspiration.

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