Ch. 46 Bowel elimination Flashcards
(17 cards)
what may affect bowels
- surgery
- immobility
- medications
- therapeutics diets
Mouth
digestion begins with mastication
esophagus
peristalsis moves food into the stomach
stomach
stores food, mixes food, liquid and digestive juices; moves food into small intestine
small intestine
- segmentation and peristaltic movement facilitate both digestion and absorption
- 3 sections: duadenum, jejunum, and the ileum
- duodenum and jejunum absorb most of the nutrients and electrolytes
Large intestine
-the primary organ for bowel elimination
-3 sections: cecum, colon, rectum
3 functions:
+absorption
+secretion
+elimination
anus
expels feces and flatus from rectum
defecation
distention in rectum causes relaxation of internal sphincter and awareness of need to defecate
factors affecting bowel eliminiation
-physical activity=promotes peristalsis
-emotional stress accelerates digestive process, peristalsis is increase-diarrhea (colitis & crohns disease)
-depression can slow peristalsis
-personal habits
-position of defecation
-pain
-pregnancy (slows down due to position of fetus)
-medications,laxativs, cathartics
-diagnostic tests
+colonoscopy, sigmoidscopy, endoscopy
common bowel elimination
- constipation
- fecal impaction
- diarrhea: excessive loss of colonic fluid
- incontinence: inability to control passage of feces and gas
- flatulence: accumulated gas in the intestines, causing wall to stretch
- hemmorrhoids: dilated, engorged veins in the lining of the rectum
bowel diversions
stoma- temporary or permanent artifical opening in the abdominal wall
- ileostomy
- colostomy
loop colostomy
temporary in the transverse colon
end colostomy
proximal end forms stoma, distal end is removed or sewn closed
double-barrell colostomy
bowel is surgically cut and both ends are brought through the abdomen
ilteoanal pouch anastomosis
pouch is resservoir for wastes which are eleminated from the anus
kock continent ileostomy
small intestines form a pouch which is emptied several times a day
macedo-malone antegrade continence enema
a procedure developed for client who has neuropathic or structural abnormality of anus