The previous week he visited a local petting zoo, where he consumed a salad and hamburger that may have been undercooked per the family report. In the Emergency Department he is afebrile and physical exam is notable only for dehydration. White blood count was 13,100/mm3 (normal 3,200-9,800/mm3) with 87% PMNs (normal 54-62%). Gram Stain of the stool showed many PMNs and was positive for blood.

Question 2

Which of the following is the best way of distinguishing between inflammatory and secretory diarrhea with a bacterial etiology?

A.Duration of symptoms
B.Epidemiology
C.Presence or absence of fecal white blood cells
D.Presence or absence of fever
E.Volume of diarrhea

INSTRUCTIONS

• Step 1: Answer the question, providing medical reasoning to back up your answer. Your answer should be at least 3-5 sentences. DO NOT REFRESH YOUR BROWSER UNTIL YOU HAVE FINISHED YOUR ANSWER.
• Step 2: Now, refresh your browser, and respond to as many others in your team as you can. Responses should provide evidence of your thinking processes (not just "I agree", or "answer is X"). Regularly refresh your browser as others' responses come in.
• Step 3: Based on the discussion recorded in CGScholar, your team reporter should now enter your team's answer in Benware. The whole-class discussion of this application exercise will take place verbally as usual.