<prompt> Which needle is shown below?Vim silverman needleTru-Cut needleLumbar puncture needleAbrahams pleural biopsy needle  <response>: Ans.B Tru-cut needle.20mm sample notchScalpel-sharp surgical steel cutting edge retrieves cleanly cut, high-quality specimensRemovable stylet allows multiple sampling capabilitiesA thin-wall cannula for large core sampleCentimeter depth markings assist in needle placement 