<prompt> Universal Standard precaution to be observed by surgeons for the preventation of hospital acquired HIV infection include the following exceptWearing gloves and other barrier precautionWashing hands on contaminationHandling sharp instruments with carePre - operative screening of all patients of HIV  <response>: Standard precautions are meant to reduce the risk of transmission of bloodborne and other pathogens from both recognized and unrecognized sources. Some of the key elements include : Hand hygiene Gloves Facial protection Gown Prevention of neddle stick and injuries from sharps Respiratory hygine and cough etiquette Environmental cleaning Linens Waste disposal Patient care equipment 