Bone marrow puncture needle method

The methods of bone marrow puncture include site selection, body position selection, routine disinfection, needle entry and extraction of bone marrow fluid. First, the choice of puncture site, usually choose the anterior superior iliac spine or posterior superior iliac spine, children can choose the manubrium sternum as the puncture site; Second, if the sternum and the anterior superior iliac spine are selected, supine position is needed; If the posterior superior iliac spine is selected, the lateral decubitus position is required. Third, routine disinfection of the skin, wearing sterile gloves, laying a towel, local infiltration anesthesia with 2% lidocaine; Fourth, enter the puncture needle, the bone marrow puncture needle is fixed on the skin surface, puncture needle and bone surface at an Angle of 30 degrees to 40 degrees oblique, when the puncture needle into the bone has a breakthrough feeling, the puncture needle has been fixed in the bone marrow cavity; Fifth, extract bone marrow fluid, generally extract 0.1-0.2ml.

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