The nurse is preparing to administer a soapsuds enema to an adult client with constipation. Which action should the nurse take to ensure client safety during the procedure?

Reassure the client that the pain will stop after passing the stool.

Insert the lubricated enema tubing 5-6 inches into the rectum.

Position the client to left side-lying with the right knee flexed.

Hang the soapsuds enema bag 22-28 inches above the mattress.