<prompt> Grade III contaminated wound is are-Appendicular perforationWound contaminated with gross fecal material spillageWound in urinary tract without unusual contaminationSurgery over a clean site  <response>: Answer- B. Wound contaminated with gross fecal material spillageContaminated wounds class III include open accidental wounds encountered early after injury, those with extensive introduction of bacteria into a normally sterile area of the body due to major breaks in sterile technique e.g., open cardiac massage, gross spillage of viscus contents such as from the intestine, or incision through inflammed, albeit nonpurulent tissue. 