<prompt> Which one of the following is used as preservative for packing catgut sutureIsopropyl alcohol.Colloidal iodine.Glutaraldehyde.Hydrogen peroxide.  <response>: Ans. is a ie., isopropyl alcoholRememberSuturesPreservatives usedCatgutIsopropyl alcoholProlineIsopropyl alcoholVicrylNoneSilkNone 