<prompt> For which procedure is the following instrument used?Bone marrow examinationLiver biopsyPleural biopsyLumbar puncture  <response>: Ans. a Bone marrow examinationRef: Dacie Practical Hematology, 10thed163; Complete review of Pathology 1st761This is a Sahlis bone marrow aspiration needle. Sahlis needle has a Screw on the side; S for SKlimas bone marrow aspiration needle no side screw 