<prompt> Universal precautions to be observed by surgeons for the prevention of hospital acquired HIV infection include the following exceptWearing gloves and other barrier precautionWashing hands on contaminationHandling sharp instruments with carePreoperative screening of all patients for HIV  <response>: Universal precautions have been drawn up by the CDC in the United States and largely adopted by the National Health Service NHS in the UK in summary:Use of a full face mask ideally, or protective spectacles;Use of fully waterproof, disposable gowns and drapes, particularly during seroconversion;Boots to be worn, not clogs, to avoid injury from dropped sharps;Double gloving needed a larger size on the inside is more comfortable;Allow only essential personnel in theatre;Avoid unnecessary movement in theatre;Respect is required for sharps, with passage in a kidney dish;A slow meticulous operative technique is needed with minimised bleeding.Key Concept:Universal precautions do not include the preoperative screening of patients for HIV.Reference: Bailey Loves short practice of surgery , 27th ed page no 52 