When is a bone piercing necessary?

Bone marrow aspiration is a common diagnostic technique for taking bone marrow fluid, and its examination contents include cytology, protozoa and bacteriology. The sites generally selected for bone marrow puncture are (1) anterior superior iliac spine: the puncture point is usually taken 1 to 2 cm behind and above the anterior superior iliac spine, where the bone surface is flat, easy to fix, and safe to operate; (2) posterior superior iliac spine: located in The bony prominence on both sides of the sacral vertebrae and above the buttocks; 3. Manubrium: This place is rich in bone marrow. When the puncture of the above-mentioned parts fails, the manubrium can be punctured, but the bone here is thin, and there are atria and great blood vessels behind , to prevent the danger of penetration, and it is less used; ④ Spinous process of lumbar vertebra: It is located at the protrusion of the spinous process of lumbar vertebrae and is rarely used. The patient should do the corresponding. Position The sternum and the anterior superior iliac spine puncture take the supine position, the former also needs to use a pillow behind the back to make the chest slightly protrude. The lateral decubitus position should be taken during puncture of the posterior superior iliac spine. The lumbar spinous process was punctured in a sitting or lateral position.

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