Irritable Bowel syndrome

Question 1

IBS is a GI _______ & __________ disorder

Answer 1

IBS is a GI motility & sensory disorder

Question 2

IBS general knowledge:

Answer 2

• v common disorder
• suggested that pain tolerance for peristalsis is very low
• no abnormal structure or biochem

Question 3

Etiology (cause) of IBS

Answer 3

• unknown

- may be linked to lactose intolerance, diet, stress, smoking

Question 4

Patho of IBS (2 options)

Answer 4

(THEORIES ONLY):
1. alteration of CNS regulation of GI motor & sensory function

2. Malabsorption of fermentable CHO & polyols
   - processed by gut flora

Question 5

mnfts of IBS

Answer 5

• abdm discomfort
• alternating diarrhea & constipation (generally does not present together happens in patterns)
• flatulence, nausea
• mucoid stools

Question 6

patho theory of IBS related to alteration of CNS regulation of GI motor and sensory function

Answer 6

serotonin signalling defect (serot

Question 7

where does an Endoscopy scope?

Answer 7

scopes through mouth and upper GI tract

Question 8

where does a colonoscopy scope?

Answer 8

scopes through rectum and lower GI tract

Question 9

Treatment of IBS is based on the _________ of IBS

Answer 9

severity

Question 10

Treatments of IBS

Answer 10

• avoid offending foods
• reduce stress
• drugs: -antispasmodics prn, -antidiarrheals, -laxatives, -antibiotics

Question 11

why would antibiotics sometimes be used in the treatment of IBS

Answer 11

if there is too much of the normal gut flora

Question 12

why would antibiotics sometimes be used in the treatment of IBS

Answer 12

if there is too much of the normal gut flora, use antibiotics to eliminate some

Question 13

Diagnosing IBS

Answer 13

• exclude organic disease (exhaustive, usually done by gastrointologist)
• various labs & scopes (not scoping for IBS, scoping for other causes)
• how it is presenting (mnfts)