To perform the surgical scrub appropriately, the scrub person should scrub the nails and then visualize each finger, hand, and arm as having four sides. Each of the four sides should be washed effectively. For appropriate scrubbing, the hands and arms should be divided into four different areas, not anterior and posterior. The appropriate technique for rinsing is from the fingertips to the elbows, leaving the hands as the cleanest part of the upper extremities. A used towel should never be placed on the sterile field, not even on the corner.