In a surgical hand scrub, to what height above the elbow should the scrub extend?

In a surgical hand scrub, to what height above the elbow should the scrub extend?

• A. At the wrist
• B. At the mid-forearm
• C. 2 inches above the elbow
• D. At the shoulder

Answer: (C)

The main idea is to establish a sterile boundary that reliably covers the forearms while keeping nonsterile upper arms outside the sterile field. Extending the scrub to two inches above the elbow provides that boundary: the hands and forearms stay fully scrubbed and sterile, and the area where sleeves meet the skin is kept out of the sterile field. Going only to the wrist would leave part of the forearm unsanctioned by the scrub; stopping at the mid-forearm wouldn’t cover the elbow transition where contamination could occur; reaching the shoulder would pull nonsterile upper-arm skin and clothing into the sterile area. Therefore, two inches above the elbow is the height that best maintains a sterile, protected forearm during the procedure.

The main idea is to establish a sterile boundary that reliably covers the forearms while keeping nonsterile upper arms outside the sterile field. Extending the scrub to two inches above the elbow provides that boundary: the hands and forearms stay fully scrubbed and sterile, and the area where sleeves meet the skin is kept out of the sterile field. Going only to the wrist would leave part of the forearm unsanctioned by the scrub; stopping at the mid-forearm wouldn’t cover the elbow transition where contamination could occur; reaching the shoulder would pull nonsterile upper-arm skin and clothing into the sterile area. Therefore, two inches above the elbow is the height that best maintains a sterile, protected forearm during the procedure.