Final answer:
During an exacerbation of ulcerative colitis, the client's stools are typically watery with blood and mucus.
Step-by-step explanation:
During an exacerbation of ulcerative colitis, the client's stools are typically watery with blood and mucus. Ulcerative colitis is an inflammatory bowel disease that causes inflammation and ulcers in the colon and rectum, leading to symptoms such as lower abdominal pain and bloody diarrhea. A stool sample may be ordered to identify possible causative agents and to look for the presence of blood.