A nurse is observing an assistive personnel (AP) administer a 0.9% sodium chloride enema to an adult client. For which of the following actions by the AP should the nurse intervene?

Points tubing in the direction of the umbilicus during insertion

Reminds the client to retain the solution for a minimum of 2 min

Inserts the tubing 8 cm (3.1 in) into the rectum

Chills the solution prior to administration