IBS

Question 1

What are the 3 key criteria for diagnosing IBS?

Answer 1

Recurrent abdominal pain (≥1 day per week for the past 3 months)

Change in stool frequency (constipation, diarrhea, or both)

Change in stool form (hard, lumpy, or watery stools)

Question 2

What are the red flag symptoms that exclude the diagnosis of IBS?

Answer 2

Rectal bleeding (suggests IBD or colon cancer)

Nocturnal diarrhea (seen in IBD, not IBS)

Weight loss (suggests IBD, cancer, or malabsorption)

Family history of colorectal cancer, IBD, or celiac disease

Question 3

What are the common subtypes of IBS?

Answer 3

IBS-C (constipation-predominant)

IBS-D (diarrhea-predominant)

IBS-M (mixed, alternating diarrhea and constipation)

Question 4

How do you treat IBS-C (constipation predominant IBS)?

Answer 4

Fiber (psyllium)

Laxatives (polyethylene glycol/PEG)

Secretagogues (lubiprostone, linaclotide)

Question 5

How do you treat IBS-D (diarrhea predominant IBS)?

Answer 5

Loperamide (anti-diarrheal)

Rifaximin (antibiotic)

Bile acid sequestrants (cholestyramine)