GI diseases pt 2 Flashcards
(122 cards)
how do diseases of intestines manifest?
diarrhea
constipation
changes in stool characteristics
secondary diseases that arise as a result of poor nutrition
What is appendicitis?
acute and painful inflammation of the appendix
most common in males before puberty to age 25
location of appendix at cecum makes it a trap for fecal material which contains bacteria (particularly Escherichia coli)
s/s of appendicitis?
appendix to become swollen, red and covered with inflammatory exudate
possible to develop gangrene (become green and black)
walls of appendix may thin and rupture causing fecal material to spill into peritoneal cavity = peritonitis
nausea, vomiting, fever of btwn 99F and 102F and elevated WBC count
how to diagnose appendicitis?
physical exam (pain begin in mid abd and shifting to the RLQ)
pt may walk or lie bending over and draw R leg up to abd to seek pain relief
What is malabsorption syndrome?
inability to absorb fat or other substance from the small intestines
main cuase is defective mucosal cells in small intestine (also hindered if intestinal enzymes and chemicals r not propelry assisting digestive process), disease pancres or blocked pancreaticduct, reduced secretion of bile (caused by hepatic disease or bile duct obsrtuction), also prevents lipid digestion, hyperparathyroid and diabetes mellitus, severe parasitic and worm infestiaions
often occurs with other types of diseases and disorders
diseased pancreas + malabsorption syndrome
disease pancreas/ obstructed pancreatic duct deprives small intestine of lipase and amylase = fat cant be digested or absorbed
s/s of malabsorption syndrome?
bleeding bc vitamin K essential to blood clotting cant be absorbed
lack of energy
inability to maintain weight
fat in stool (fatty, pale stool with a foul odor, stool floats)
abd discomfort
bloating with gas
chronic diarrhea
abnormal bowel movement
anemia
SOB
how to diagnose treat malabsorption?
diagnose w/ several blood tests, lab analysis of stool samples, biopsy of small bowel
treat - depends on cause, diet is carefully controlled and supplements of fat-soluble vitamins A, D, E and K and high-protein, high cal
What is Celiac disease + other names?
aka gluten enteropathy and celiac sprue
disease of small intestine, characterized by malabsorption, gluten intolerance, damage to lining of intestine
affects 2 million ppl or 1 in 133 ppl
caused by toxic or an immunologic reaction to component of gluten, genetic, 2x more in females
risk factors of celiac disease?
seems to be genetics
immune dysfunction
affects twice as many females as males
more common in European ancestry
s/s of celiac disease?
dermatitis herpetiformis (skin rash of pruritic papulovesiclve on extremities and over trunk, scalp and neck)
recurrent diarrhea
gas
abd cramps
systemic signs of malnutrition due to low caloric intake and poor absorption of vitamins
wt loss
anorexia
duarrgea
fkatulence
abd distention
intestinal bleeding
weakness
muscle wasting
large, pale, greasy, foul-smelling stools
how to diagnose and treat celiac disease?
diagnose - positive serologic testing, biopsy of small intestine showing changes or destruction in mucosal lining ((atrophy and flattening of intestinal villi), improvement while on a gluten-free diet, blood tests for WBC, platelets, albumin, PT, glucose tolerance, upper GI and small bowel radiographic studies
treatment - elimination of gluten from diet, fluid replacement and vitamin supplements, corticosteroids for refractory sprue
What are Diverticula + etiology & s/s?
little pouches or sacs formed when the mucosal lining pushes through the underlying muscle layer of the intestinal wall (called diverticulosis) which become diverticulitis when these acs become impacted fecal material and bacteria and become inflamed
- colonic diverticla may vary in size, from a few mm to several centimeters and in number from 1 to several dozen
- sometimes pt expresses nonspecific bd distress, such as pain and flatulence, difficulty in defacation, alternating constipation and diarrhea and even blood in stool
- cause is unknown, thought to be caused by diet that contains inadequate roughage and excessive amounts of highly refined food (lack of roughage = small-caliber, drier stools)
Where is diverticular disease most prevalent?
in western industrialized nations where fiber consumption is the lowest
50% of older adults develop diverticulosis
what are the risk factors for diverticulitis?
age
diet low in fiber
family history
What does diverticulitis cause?
causes low, cramping pain in left side of abt and lumen of intestine to narrow and obstruct
how to diagnose and treat diverticulitis?
diagnose - CT scan and endoscopy
Treat - antibiotic therapy with controlled diet
What is regional enteritis + etiology?
aka Crohn’s disease, inflammatory disease of intestine that frequently affects the upper colon and sometimes the distal end of the ileum
caused by allergies, immune disorders or stress
risk factors of crohn’s disease?
affects white adults age 20-40
2-3 times more common among Ashkenazi Jews
family history
autoimmune disease
s/s of crohn’s disease?
- peroianal fissures and fistulas
- related to the inflammation
- intestinal walls become thick and rigid
- lumen narrows and develops a chronic obstruction
- resembles appendicitis
- malaise, fever, abd fullness, blood in stool
- crappy, intermittent abdominal ain, often in RLQ abdomen
severe diarrhea, constipation and melena - anorexia, nausea and vomiting leading to wt loss
- inflammation can manifest as RA, hemorrhage or perforation
- complications include deep ulcerations, symptoms of bowel obstruction, adhesions, abscesses, mimin small intestine bacterial overgrowth (SIBO)
how to diagnose and treat Crohn’s disease?
diagnose - CT, endoscopy, enteroscopy, test for elevated level of WBC, low levels of potassium, calcium and magnesium, biopsy
treat - anti-inflammatory meds and immunosuppressive agents, antibioitcs, sterois, anticholinergics, narcotics, surgery to correct complications like obstruction, perforation or massive hemorrhage (may need ileostomy), dietary supplements of vitamins, minerals, proteins and calories, iv nutrition
What is chronic ulcerative colitis + etiology?
type of chronic inflammatory bowel disease that affects mucosa and submucosa of rectum and colon
serious inflammation of the colon characterized by extensive ulceration of the colon and rectum
may be caused by autoimmunity, E. coli infection, stress or hypersensitivity to certain foods (familial tendency)
higher occurance in white ppl of Jewish descent (usually occurs betwn 15 and 30)
What are the typical s/s of chronic ulcerative colitis?
teesmus
bloody diarrhea
urgency to defecate
mucoid stools
pus blood, and mucus in the cramplike pain in the lower abdomen
anemia
cramps and rectal pressure
weight loss
fever
malaise
periods of remission and exacerbation
how to diagnose chronic ulcerative colitis?
diagnose - clinical symptoms, reduced Hgb level and leukocytosis, electrolyte abnormalities, plain film radiograph, stool cultures, colonscopy and CT in which colon looks like it doesnt have normal pouchlike markings of the colon (appears straight and rigid - pipestem colon), barium enema studies, biopsy