Ulcerative colitis Flashcards
Definition
A type of inflammatory bowel disease that causes inflammation & ulcers in the inner lining of colon and rectum
Etiology
Unknown but seems to be autoimmune triggering the body to inflame the colon in response to
- Environment source: diet (high fat), milk allergy, stress, illness, NSAID usage
- Genetic factors
Pathophysiology
- A “flare up” occurs which causes inflammation in the large intestine
- Inflammation kills the cells of the lining
- Forms ulcers which bleed & release pus/mucus
- Colon can’t do its job by absorbing water & minerals
- GI contents entering from small intestine that is liquid going through colon will mix with blood pus, blood and mucus
- Inflammation causes the colon to want to empty frequently
Clinical manifestations
“ULCERS”
Urgent BMs Low RBCs (anemia), loss of weight Cramps in abdomen (very pain) Electrolyte imbalance, elevated temperature Rectal bleeding Severe diarrhea w/ blood, pus and mucus
Complications
- With have flare-ups and period of emotion which results in continuous inflammation in healing resulting in: pseudopolyps, scar tissue & narrowing
- With severe cases: haustra (loses pouch like form) and appear as smooth “lead-pipe sign”
- Rupture: repetitive ulceration results in small holes… leaks contents into abdominal cavity resulting in peritonitis -> septic shock
- Toxic Megacolon: overwhelming inflammation dilates colon and becomes paralyzed… ruptures
Diagnosis
- Colonoscopy: examine colon w/ scope
* Barium enema: x-ray used to asses colon… enema of contrast given into rectum to line colon
Treatment
Surgery (severe cases)
• Proctocolectomy where ostomy is placed
• Ileoanal anastemosis (J-pouch)
Medications
Diet
Nursing interventions
Monitoring vital signs
- Bowel movement & sounds
- Focus GI assessment
Abdominal pain, bloating, fever, tachycardia, hyperactive or diminished bowel sounds = peritonitis + toxic megacolon
NPO w/ IV hydration per MD order
Diet education
- foods that can cause flare ups such as high–fiber food, hard to digest (nuts popcorn, raw + veg), dairy, spicy or high-fats
Regular colon cancer screenings
Medications
Goal: control flare-ups and maintain remission
Anti-inflammatory
- 5-aminosalicylates: first line tx for mild to moderate e.g., sulfasalazine
- Corticosteroids: not used for long term e.g., prednisone
Immuno-suppressors used when other meds not working or pt needs to be off steroids
- Suppressors: “Imuran” suppresses immune response, can affect enzymes
- Modulators: “Humria” * TNF-blockers , increased risk for TB