Why would a barrier be needed for a blood pressure cuff?
Blood pressure cuffs are a potential vehicle for transmission of infection between patients. A September 2006 study showed that 77% of blood pressure cuffs that are rolled on trolleys from room to room were contaminated. 83% of blood pressure cuffs in intensive care units were contaminated. Source: “Unnecessary Deaths: The Human and Financial Cost of Hospital Infections” by Betsy McCaughey, Ph.D.