<prompt> Which of the following statements is true regarding cerclageShirodkar procedure is most often selected.Broad - spectrum antibiotic prophylaxis is required.Ideally performed at 10 12 weeks gestation.Prolapsing membranes can be reduced with Trendelenburg positioning and bladder filling prior to cerclage placement.  <response>: Timing of surgery is between 12 14 weeks gestationMcDonald technique is most used procedureNo need of antibiotic prophylaxis as membranes not ruptured. 