Gowns: selection on a procedure-driven basis.

The Occupational Safety and Health Administration requires that the types and characteristics of personal protective equipment used "depend upon the task and degree of exposure anticipated." The level of protection required, therefore, is logically contingent upon the operative site, estimated blood loss, and duration of the procedure. However, more recent studies provide data that specifically identify the personnel and areas of the body that are most likely to become contaminated. This adds a new dimension to the procedure-oriented selection process that is worthy of consideration.