Persistent diarrhea MCQ | Crack AIIMS NOV 2016 MCQs

Persistent diarrhea is defined as diarrhea that begins as an acute episode and lasts for at least: 

A. 7 days 
B. 10 days 
C. 14 days 
D. 2l days

Answer. D. 21 days

Persistent Diarrhea lasts for at least 21 days.