Answer:
The doctor should recommend Stool test to that patient.
Explanation:
Diarrhea is mainly caused by bacteria,virus,parasite etc which are mainly caused by intaking of contaminated food and water.
Diarrhea are of 2 types- Acute diarrhea and Chronic diarrhea.
Acute diarrhea lasts for one or two days but sometimes it may lasts longer.
Chronic diarrhea lasts for short time period.
The symptoms of diarrhea include-Cramps or pain in the abdomen,loss of bowel control,dehydration etc.
The treatments include-
i)Blood test
ii)Stool test
iii)Flexible sigmoidoscopy or colonoscopy