<prompt> The given instrument is used for?Pleural biopsyLumbar punctureLiver biopsyBone marrow biopsy  <response>: Ans. B. Lumbar puncture Ref: Harrison 19e p443e-1, 18e p46 The given needle in the question is used for lumbar puncture.Abrams Pleural Biopsy NeedleVim-Silverman Liver Biopsy NeedleLumbar Puncture Needle 