You will probably be given a mild sedative an hour or so before the test. The operator injects a local anesthetic into the chosen site. Operator then makes a small incision through the skin. Bone marrow is removed by suction and collected into a sterile syringe. Needle is withdrawn.
Bone marrow is sent to the laboratory for analysis.
After the test Immediate post-test care Apply pressure to the site where blood or bone marrow was drawn until the bleeding stops. If a vein has been punctured, raise your entire arm over your head while applying pressure. Some discoloration, soreness or swelling may develop at the venepuncture site. This responds well to moist, warm compresses applied every 2 to 4 hours. Activity after test Return to pretest activities right away.