Exam 3 Flashcards
what does chron’s involve that UC doesn’t and what does that contribute to?
it involves the small intestine, contributing to malabsorption
IBD
chronic, recurrent inflammation of the intestinal tract that has periods of remission and exacerbation
types of IBD
UC and chron’s
is UC or chron’s autoimmune?
chron’s
clinical manifestations of IBD
- diarrhea
- bloody stool
- weight loss
- abdominal pain
- fever
- fatigue
complications of IBD
hemorrhage, strictures, perforation, fistulas, colonic dilation, colorectal cancer, liver failure, systemic problems
pattern of inflammation in chron’s
it involves all layers of the bowel wall that can occur anywhere in the GI tract
where is chron’s most commonly found?
the terminal ileum and colon
what is good way to recognize chron’s during a scope?
it will look like cobblestones
because inflammation in chron’s goes through the entire wall, what can happen?
- abscesses can form and peritonitis can result
- fistulas can develop
clinical manifestations of chron’s
- diarrhea
- crampy abdominal pain
- weight loss when the small intestine is involved
- rectal bleeding
- fever or other systemic symptoms
pattern of inflammation in UC
starts in rectum and moves up towards the cecum
what electrolyte is mostly lost when someone has diarrhea?
mostly potassium
clinical manifestations of UC
- bloody diarrhea
- abdominal pain
- fever
- rapid weight loss
- anemia
- tachycardia
- dehydration
what would you expect in lab results with UC?
low H and H and increased WBC
goal of drug treatment in IBD
to induce and maintain remission
what kind of ostomy is usually given with IBD?
ileostomy: going to be very dehydrated
gerontologic considerations with IBD
- second peak of disease in 60s
- diagnosis can be difficult ~ confused with c. diff
- distal colon is usually involved in UC
clinical manifestations of IBS
- abdominal pain
- diarrhea or constipation
- abdominal distention
- excessive flatulence
- bloating
- urgency
- sensation of incomplete evacuation
- fatigue
- sleep disturbances
what is loperamide (imodium) and when would you not recommend this drug?
it is used to treat diarrhea and it decreases the intestinal tract. you do not want to use it if F/E are out of balance
what is a huge factor of IBS?
stress
gastritis
inflammation of gastric mucosa that results in the breakdown of gastric mucosal barrier
in gastritis, what is the stomach tissue unprotected from?
autodigestion by HCl acid and pepsin
since the stomach is in LUQ, what can this be confused with?
heart problems
what problem results from gastritis?
tissue edema and disruption of capillary walls that can cause hemorrhage
what kind of drugs can cause gastritis?
NSAIDs, including aspirin and corticosteroids
what diet contributes to gastritis?
alcohol or spicy foods
what environmental factors contribute to gastritis?
radiation or smoking
how can an NG tube contribute to gastritis?
there is constant irritation on the stomach wall
autoimmune atrophic gastritis
- affects fundus and body of stomach
- associated with increased risk of gastric cancer
- may be linked to presence of H. pylori and development of chronic gastritis
clinical manifestations of acute gastritis
- anorexia
- N/V
- epigastric tenderness
- feeling of fullness
- hemorrhage
clinical manifestations of chronic gastritis
- similar to acute
- loss of intrinsic factor can occur when acid-secreting cells are lost or nonfunctioning
what is diagnosis of gastritis based on?
history of drug and alcohol abuse
why would we confirm presence of anemia with possible gastritis?
unfound anemia is almost always a GI bleed
what diagnostic studies can we do for gastritis?
- CBC
- occult blood test
- serum antibody tests
- tissue biopsy to rule out cancer
what might be needed in severe cases of gastritis?
an NG tube; observe for bleeding and lavage to flush precipitating agent from stomach
most common manifestations of GI diseases
nausea and vomiting
chemoreceptor trigger zone (CTZ)
- responds to chemical stimuli of drugs and toxins
- located in the brainstem
- site of action of drugs used to induce vomiting
- plays a role in vomiting cause by labyrinthine stimulation
parasympathetic stimulation of N/V
- relaxes lower esophageal sphincter
- increases gastric motility and salivation
what can vomiting result in?
- metabolic alkalosis: from loss of gastric HCl
- metabolic acidosis: from loss of bicarbonate if the contents from the small intestine are vomited
what might indicate a lower intestinal obstruction in throw up?
fecal odor and bile
what kind of complications would bright red blood in vomit indicate?
- mallory-weiss tear
- esophageal varices
- gastric or duodenal ulcer or neoplasm
what nutritional therapy would we start after N/V?
- IV fluids to replace fluids and electrolytes, glucose
- NG tube suction to decompress stomach
- clear liquids started first
why do we use gatorade and broth with caution after N/V
because of high salt intake
how can we avoid overdistention of the stomach?
take fluids between meals instead of with
GERD
- common problem
- chronic manifestation of mucosal damage
- caused by reflux of gastric contents
- not a disease, but a syndrome
who are GI issues more common in?
males
incompetent LES
- primary factor in GERD
- results in decreased pressure in distal portion of esophagus so gastric contents move from stomach to esophagus
- can be due to certain foods (caffeine, chocolate) and drugs (anticholingergics)
clinical manifestations of GERD
- heartburn (pyrosis): burning, tight sensation felt beneath the lower sternum and spreading upward to throat or jaw
- dyspepsia: pain of discomfort centered in upper abdomen
- regurgitation: hot, bitter, or sour liquid coming into throat or mouth
- respiratory symptoms: wheezing, coughing, dyspnea, nocturnal coughing with loss of sleep
- otolaryngologic symptoms: hoarseness, sore throat, lump in throat, choking
- GERD-related chest pain
what can esophagitis result in?
dysphagia
barrett’s esophagus (esophageal metaplasia)
- replacement of normal squamous epithelium with columnar epithelium
- precancerous lesion
- must be monitored every 2-3 years by endoscopy
what can GERD cause from acid reflux into mouth?
dental erosion
nutritional therapy in GERD
- decrease high-fat foods
- take fluids between rather than with meals
- avoid milk products at night
- avoid late-night snacking or meals
- avoid chocolate, peppermint, caffeine, tomato products, orange juice
- weight reduction therapy
- chewing gum and oral lozenges can increase saliva and help with mild symptoms
anytime we cut into GI tract, what is there a risk for?
a stricture
nursing management for GERD
- elevate HOB 30 degrees
- not lying down for 2-3 hours after eating
- avoid late night eating
- evaluate effectiveness of medications
- observe for side effects of medications
- avoid factors that cause reflux: smoking, alcohol, caffeine, acidic foods
- stress reduction techniques
- weight reduction
- small, frequent meals