05 - Disorders of the small colon and rectum

Question 1

(disorders of small colon and rectum)

Question 2

(disorders of small colon and rectum)

(small colon impaction/obstructions)

1. any sex: arabians, mini horses, ponies most

Question 3

(disorders of small colon and rectum)

(small colon impaction/obstructions)

1. Cx?

Question 4

(disorders of small colon and rectum)

(small colon impaction/obstructions)

Answer 4

Question 5

(disorders of small colon and rectum)

(small colon impaction/obstructions)

1. tx?
2. prog?

Answer 5

Question 6

(disorders of small colon and rectum)

(meconium impaction)

1. affects what horses?
2. what is meconium?

Answer 6

1. young foals up to 72 hours after birth

(dehydrated, weak, premature, or septic foals may be at greater risk)

2. first feces passes after birth (can become hard and impacted in foals)

Question 7

(disorders of small colon and rectum)

(meconium impaction)

1. Cx?

Answer 7

Question 8

(disorders of small colon and rectum)

(meconium impaction)

1. dx?

Answer 8

Question 9

(disorders of small colon and rectum)

(meconium impaction)

1. tx?

Answer 9

Question 10

(disorders of small colon and rectum)

(meconium impaction)

1. prog?

Question 11

(disorders of small colon and rectum)

(rectal tears)

1. causes: iatrogenic (2° to rectal palpation), breeding accident, rectal tumor
2. what are the four grades?

Answer 11

2. 1: mucosa or submucosa
   2: muscularis
3. muscosa, submucosa, muscularis
4. all four layers into peritoneal cavity

Question 12

(disorders of small colon and rectum)

(rectal tears)

1. Cx?

Answer 12

Question 13

(disorders of small colon and rectum)

(rectal tears)

1. dx?

Answer 13

Question 14

(disorders of small colon and rectum)

(rectal tears)

1. treatment and prevention?

Answer 14

Question 15

(disorders of small colon and rectum)

(rectal tears)

1. sx treatment

Answer 15

Question 16

(disorders of small colon and rectum)

(rectal tears)

1. complications?

Answer 16

Question 17

(disorders of small colon and rectum)

(rectal tears)

1. prognosis?

Answer 17

Question 18

(disorders of small colon and rectum)

(rectal prolapse)

1. causes?
2. more common in F or M?

Answer 18

1. straining (colic, diarrhea, dystocia, parasites), proctitis, rectal tumor, rectal foreign body
2. F

Question 19

(disorders of small colon and rectum)

(rectal prolapse)

1-4. what are the four types?

Answer 19

1. only rectal mucosa
2. complete prolapse of all or part of the rectal amuplla
3. small colon intussuscepts into rectum in addition to type II
4. peritoneal rectum and variable amount of small colon will prolapse as an intussusception through the anus

Question 20

(disorders of small colon and rectum)

(rectal prolapse)

1. conservative tx?
2. when is submucosal resection indicated?

Answer 20

1. treat underlying, anti-inflamm, caudal epidural to prevent straining
2. if prolapsed tissue devitalized or recurs after conservative treatment

Question 21

(disorders of small colon and rectum)

(rectal prolapse)

1. prognosis and complications?

Answer 21