bowel obs

Question 1

3 main wuastions to ask in obs,

Answer 1

1. large or small
2. mech or funct.
3. intraluminal, intramural, extraluminal

Question 2

Sx for mech obs (small and large)

Answer 2

• crampy abdo pain
• periumbilical
• nausea/vomiting
• obstipatin
• distention

Question 3

sx of large functional

Answer 3

• distension
• obstipations
• NOT nausea vomit
• little pain

Question 4

sx of small fucntional

Answer 4

• N/V
• obstipation
• distension

Question 5

3 part os Phx

Answer 5

1. ABC
2. vitals
3. Abdo exam

Question 6

5 parts to abdo exam

Answer 6

1. inspect
2. ascultate
3. percussion
4. palpation
5. DRE

Question 7

DDx for obs. Sx

Answer 7

GI: pancreatitis, appendidicits, divertiulitits
GYN: ovarian torsion

Question 8

extra investigations

Answer 8

Labs
- CBC, lytes, BUN, Cr, lipase
Imaging
- 3VA

Question 9

3 things seen on 3VA

Answer 9

1. dilated small or large bowel
2. air fluid levels
3. bowel filled with fluid

Question 10

how to diff. small from large bowel on xray (3)

Answer 10

1. size
2. postion: frame vs. central
3. features
   - small - plicase circularis
   large - haustra

Question 11

what types of CT for small and large

Answer 11

small - oral contrast - mech vs. function

large - rectal contrast

Question 12

**3 main causes of mech LBO and treatment

Answer 12

1. colon CA
   - stent or hartmanns
2. diverticular structure
   - hartmanns
3. volvulus
   - sigmoid - scope decompression
   - cecal - right hemicolectomy

Question 13

3possible other causes of LBO

Answer 13

1. gallstone illeus
2. radition strictures
3. peritoneal carcinomatosis

Question 14

**2 top causes of mech SBO obs and treatment

Answer 14

1. adhesions
   - often resolve in a couple of days
   - oterwise surg
2. hernias
   - surgery to relieve the obs

Question 15

3 other possible causes of SBO

Answer 15

1. benzoar - materials
2. intussusseption
3. chrons