<prompt> A 67 year old patient has been given a course of antibiotics through gluteal intramuscular injections after a major abdominal surgery. To avoid damage to the sciatic nerve, during injection needle is to be inseed in which of the following area ?Midway between ischial tuberosity and lesser trochanterOver sacrospinous ligamentMidpoint of the gamelli musclesUpper lateral quadrant of gluteal region  <response>: Inseion of needle at upper lateral quadrant of gluteal region doesnt injure nerves Needle inseion at lower medial quadrant damages sciatic and pudendal nerves Needle inseion at sacrospinous ligament damages pudendal nerves and vessels Needle inseion at the midway between ischial tuberosity and lesser trochanter damages sciatic nerve, posterior femoral cutaneous nerves. Ref: Grays Anatomy The Anatomical Basics of Clinical Practice 41 e pg 1373. 