How is bone marrow puncture/bone marrow biopsy performed?

Bone marrow puncture

This is usually done through the iliac crest, which is located at the waist and supports the body to form the pelvis, or sometimes through the sternum;

Iliac bone puncture requires prone or side lying; Supine position is required for sternum puncture;

Disinfect the skin at the puncture site with alcohol, iodophor disinfectant, chlorhexidine solution, etc.

Local anaesthesia is applied to the sterilized skin area to the bone surface to give adequate anaesthesia and the needle is then advanced;

A bone marrow needle is used to make holes in the bone, and a syringe is used to extract the marrow fluid from the bone.

It usually takes several extracts;

Remove the bone marrow needle and apply pressure to the wound to stop the bleeding.

Bone marrow biopsy

Bone marrow is taken from the site of local anesthesia with a biopsy needle slightly larger than a bone marrow puncture needle;

A bone marrow biopsy can only be done through the ilium, not where the bone is thin.

Remove the bone marrow biopsy needle and apply pressure to the wound to stop the bleeding.

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