A. Inflammatory intestinal diseases - chronic, recurrent inflammation; etiology unknown
1. ulcerative colitis
a. definition/etiology
i. affects young people ages 15 to 40
b. pathophysiology
i. ulceration and inflammation entire length of colon
ii. involves mucosa and submucosa
iii. begins in rectum and extends to distal colon
iv. abscess and ulcers lead to bleeding and diarrhea
v. colon cannot absorb, so fluids and electrolytes go out of balance
vi. protein is lost in stools
vii. scarring produces narrowing, thickening, and shortening of colon
viii. remissions and exacerbations
c. findings
i. bloody diarrhea ranging from two to three per day to ten to 20 per day
ii. stools may also contain pus and mucus
iii. abdominal (tenderness and cramping) pain
iv. fever, weight loss, anemia, tachycardia, dehydration
v. impaired absorption of fat-soluble vitamins such as E, K
vi. systemic manifestations
• skin lesions - erythema nodosum
• joint inflammation
• inflammation of the eyes - uveitis
• liver disease
d. diagnosis
i. sigmoidoscopy
ii. colonoscopy
iii. barium enema - definition
iv. complete blood count (CBC)
e. management
i. rest
ii. fluid, electrolyte, and blood replacement
iii. steroids as anti-inflammatories
iv. immunosuppressives
v. anti-infectives: sulfasalazine (Azulfidine) primary drug of choice
vi. anticholinergics
vii. antidiarrheals
viii. dietary restrictions - high calorie and high protein
ix. surgical management
• total proctolectomy and ileostomy
• ileorectal anastomosis
• total proctolectomy with continent ileostomy (Kock pouch)
• total colectomy with ileal pouch (reservoir)
BARIUM ENEMA
• With a barium enema - bowel prep prior to test, including cathartics, enemas; after study use cathartic again to cleanse bowel
• Increased fiber may cause flatulence
• Increase fluid to 3000cc/day (unless contraindicated)
Don't confuse these three!
Ileum = last part of the small intestine, before it empties into the large intestine. (An ileal pouch is filled from the ileum.)
Ileus = an obstruction (often in an intestine).
Ilium = part of the hipbone
f. complications
i. increased risk of colon cancer
ii. fluid and electrolyte imbalances
g. nursing interventions
i. manage pain
ii. manage diarrhea
iii. teach weight loss and nutrition
iv. teach coping
v. remedy knowledge deficit
vi. reduce anxiety
2. Crohn's disease
a. definition/etiology
i. young people 15 to 30 years old
ii. inflammation of segments of bowel, especially ileum, jejunum, and colon, with areas of normal bowel between inflamed bowel - cobblestone appearance
iii. inflammation involves all layers of bowel wall - transmural
iv. ulceration, fissures, fistula, and abscess formation
v. bowel wall thickens and narrows, producing strictures
vi. slowly progressive
b. findings
i. diarrhea with steatorrhea (fats not processed)
ii. abdominal pain - right lower quadrant (illustration )
iii. fatigue, weight loss, dehydration, fever
iv. systemic manifestations
• arthritis, clubbing of fingers
• skin inflammations
• nephrolithiasis
c. complications
i. obstruction from strictures
ii. fistula formation
iii. bowel may perforate and infect: peritonitis
iv. medical management
• rest
• nutritional support
• hyperalimentation
• diet high in calories and protein, low in roughage and fat
• steroids as anti-inflammatories
• immunosuppressives
• anti-infectives: sulfasalazine (Azulfidine) primary drug of choice
• anticholinergics
• antidiarrheals
• loperamide (Imodium) drug of choice
• balloon dilation of strictures
• surgery will not cure Crohn's disease; may limit damage
o colectomy with ileostomy
o subtotal colectomy with ileostomy or ileorectal anastomosis
d. nursing interventions
i. after surgery, monitor
• diarrhea
• fluid balance and nutrition
• skin integrity
• coping and self-care
• sexuality
• medications
B. Diverticular disease - outpouching of the intestinal mucosa
1. Definition/etiology
a. most common in sigmoid colon
b. constipation, low fiber diet, obesity
c. colon wall thickens with increased pressure in bowel
d. stool and bacteria retained in diverticulum become inflamed and small perforations occur
e. inflammation of surrounding tissue
2. Findings
a. frequently asymptomatic
b. crampy, lower, left abdominal pain
c. alternating constipation and diarrhea
d. low grade fever, chills, anorexia, nausea
e. leukocytosis
3. Diagnosis
a. barium enema
b. complete blood count, urinalysis, stool for occult blood
c. colonoscopy
4. Management
a. diverticulosis (outpouching)
i. high fiber diet
ii. bulk laxatives
iii. stool softeners
iv. anticholinergics
b. diverticulitis (inflammation)
i. NPO
ii. rest bowel
iii. antibiotics
iv. surgery
• bowel resection
• temporary colostomy
5. Complications
a. abscess formation
b. perforation with peritonitis
c. fistula
d. bowel obstruction
6. Nursing interventions
a. teach appropriate diet
b. avoid straining, coughing, lifting
c. avoid increased abdominal pressure
C. Constipation
1. Definition/etiology
a. change in normal bowel habits characterized by
i. decreased frequency
ii. stool is hard, dry, difficult to pass
iii. stool is retained in rectum
b. etiology/risk factors
i. insufficient dietary fiber
ii. insufficient fluid intake
iii. medications, especially opiates
iv. lack of activity
v. ignoring urge to defecate
vi. chronic laxative abuse
vii. lack of privacy/psychological factors
viii. pregnancy
ix. neuromuscular impairment
x. hypothyroidism
2. Findings
a. hard, dry stool
b. abdominal distention
c. decreased frequency of usual patterns
d. straining
e. nausea/anorexia
f. palpable mass
g. hemorrhoids
h. fecal impaction with diarrhea
3. Complications
a. obstruction/perforation
b. cardiovascular alterations
4. Management
a. cathartics
i. saline laxatives - milk of magnesia
ii. stimulant laxatives - bisacodyl (Dulcolax)
iii. bulk-forming laxatives - psyllium (Metamucil)
iv. lubricant-emollient - mineral oil
v. stool softeners - docusate sodium (Colace)
b. enemas
i. cleansing - saline, soap solution
ii. softening - oil retention
5. Nursing interventions
a. teach nutrition, increased fiber, and increased fluids
b. teach: obey urge to defecate
c. provide privacy and comfort
d. increase activity
D. Diarrhea
1. Definition/etiology - loose stools due to
a. fecal impaction
b. ulcerative colitis
c. intestinal infections
d. increased fiber
e. medications
2. Finding - loose watery stools
3. Complications - dehydration, electrolyte imbalance
4. Management
a. mild diarrhea - oral fluids to replace lost fluid
b. moderate diarrhea - drugs that decrease motility (Lomotil, Imodium)
c. severe diarrhea - due to infection, antimicrobials and fluid replacement
5. Nursing interventions
a. monitor for fluid and electrolyte imbalance
b. prevent skin excoriation
c. teach client about foods that may affect bowel elimination, e.g., fruits, vegetables
E. Bowel obstruction
1. Definition/etiology
a. mechanical: adhesions, hernias, neoplasms, volvulus, intussusception
b. nonmechanical: paralytic ileus, occlusion of vascular supply
c. distended abdomen from accumulation of fluid, gas, intestinal contents
d. fluid shifts due to increased venous pressure with hypotension and hypovolemic shock
e. bacteria proliferate
2. Findings
a. abdominal pain
b. distention (more with large bowel obstruction)
c. nausea/vomiting (more with small bowel obstruction)
d. hypoxia
e. metabolic acidosis
f. bowel necrosis from impaired circulation
3. Complications
a. perforation and peritonitis
b. shock
c. strangulation of bowel
4. Diagnosis
a. upper-GI and lower-GI series
b. abdominal X rays show air in bowel
c. low fluid volume increases white blood cells, hemoglobin & hematocrit, BUN
5. Management
a. decompress the abdomen
b. nasointestinal tube
c. surgical bowel resection
6. Nursing interventions
a. manage pain, but avoid morphine or codeine, which slow bowel motion
b. measure abdominal girth
c. with nasogastric or nasointestinal tubes, provide oral care
d. nasogastric tubes: Salem sump (double lumen), Levin (single lumen)
e. nasointestinal tubes
i. cantor tube - single lumen, mercury filled weight on tip
ii. miller-Abbott - double lumen with mercury weighted tip
iii. advance two inches per hour
f. maintain fluid and electrolyte balance
F. Colon cancer
1. Definition/etiology
a. may develop from adenomatous polyps
b. risk factors - low residue diet, high-fat diet, refined foods
2. Pathophysiology
a. adenocarcinoma is the most common type
b. most common locations are sigmoid rectum and ascending colon
c. often metastasizes to the liver
d. classification (staging) systems: TNM or Duke's
3. Findings
a. rectal bleeding
b. change in bowel habits - constipation, diarrhea
c. change in shape of stool
d. anorexia and weight loss
e. abdominal pain, palpable mass
4. Diagnostics
a. colonoscopy
b. sigmoidoscopy
c. digital examination
d. stool for occult blood
e. barium enema
f. CT scan
g. carcinoembryonic antigen (CEA)
h. alkaline phosphatase and AST (aspartate aminotransferase)
5. Complications - obstruction
6. Management
a. radiation
b. chemotherapy
c. treatment of choice is surgery - bowel resection, colostomy
i. right hemicolectomy - involves ascending colon
ii. left hemicolectomy - involves descending colon
iii. abdominal-perineal resection: removal of sigmoid colon and rectum with formation of a colostomy
7. Nursing interventions
a. manage pain
b. monitor for complications
i. wound infection
ii. atelectasis
iii. thrombophlebitis
c. maintain fluid and electrolyte balance
d. care of ostomy
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