After a Patient Returns from a Barium Swallow,the Nurse's Priority

After a patient returns from a barium swallow,the nurse's priority is to

A) Encourage the patient to increase fluids to flush out the barium.
B) Monitor stools closely for bright red blood or mucus, which indicates trauma from the procedure.
C) Inform the patient that his bowel movements are radioactive, and that he should be sure to flush the toilet three times.
D) Thicken all patient drinks to prevent aspiration.