A prv healthy 23yo presented a week hx of bloody diarrhea and abdominal pain with cramps and fever. Exam: tenderness in lower abdomen. What is the most appropriate dx?
a. Celiac disease
b. Colorectal polyps
c. UC
d. Laxative abuse
e. Gastroenteritis
answer: E
Celiac disease: bloating, non-bloody diarrhea, weight loss, anemia, no fever, long standing history
Colorectal polyps: do not usually bleed, tenesmus
UC: long standing history, episodes of bloody diarrhea
Laxative abuse: history of laxative intake, non bloody, no fever
Gastroenteritis: Acute episode, fever, abdominal pain, bloody or non bloody diarheaa (blood indicates a bacterial etiology)