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gastric folds and pits
- this area secretes most of the gastric juices consisting of digestive enzymes and hydrochloric acid
surface mucous cells
- secretes alkaline fluid that protects the stomach lining
mucous neck cells
secrete acidic mucin
parietal cells
- produce hydrochloric acid which is not actually produced in the cell but made with hydrogen and chloride ions produced in the cell. this protects from microorganisms.
- produces intrinsic factor which attaches to B12 molecules and protects from corrosive digestive enzymes until it reaches the small intestine where it can be absorbed and used by the body
chief cells
-produced pepsinogen which is the precursor of pepsin. pepsin is activated by HCl acid and breaks down smaller proteins into peptides.
- produces gastric lipase which aids in digestion of fat.
G cells
release gastric, stimulates the release of HCl acid and pepsinogen ensuring there is enough digestive enzymes when food is in the stomach
stomach
part of the Upper GI system responsive for much of the digestive process
nutritional
a person's ______________ status depends not only on the type and amount of intake but also on proper gastric functioning. although only a few diseases affect the stomach, they can be very serious and life threatening.
epithelial
the ______________ cells in the mucosal layer of the stomach have a high turnover rate and are replaced every 4 to 5 days. because of the regenerative abilities of the mucosal layer, injury to this
acute gastritis
- characterized by an acute mucosal inflammatory process that may be accompanied by hemorrhage into the mucosa
- chronic ingestion of irritating foods and alcohol
- complication of acute illnesses such s traumatic injuries, burns, severe infection, hepatic renal or respiratory failure, or major surgery
- rapid onset
chronic gastritis
prolonged, persistent, or intermittent inflammation of the gastric mucosa and is characterized by patchy, diffuse inflammation of the mucosal lining of the stomach
- over a wide area
- include helicobacter pylori gastitis (most common), autoimmune gastritis and atrophic gastritis
atrophic gastritis
type of chronic gastritis that is seen most often in older adults
h. pylori
NSAIDs
bile
causes of gastritis
- ____ __________
- alcohol
- ___________ (naproxen, iburpofen)
- Crohn's disease
- TB
- ____________ reflux
parietal
causes of chronic gastric and prolonged inflammation of the stomach include:
- H pylori
- chronic local irritation
- associated with the presence of antibodies to ___________ cells and intrinsic factors
cytokine
aspirin
hemorrhage
- The agents that cause gastritis cause injury by different mechanisms.
- In general, the infectious and inflammatory causes result in immune cell infiltration and _____________ production, which damage mucosal cells.
- Irritating agents such as alcohol, ___________ , and bile generally work to disrupt the mucosal barrier, causing mucosal damage by back diffusion of hydrogen ions.
- This allows gastric juices to come into contact with the gastric tissue, producing mucosal reddening, edema, and superficial surface erosion. Ulceration may occur and can lead to ____________
intrinsic
the ____________ factor is critical for absorption of vitamin B12. when body stores of vitamin B12 are depleted hemoglobin cannot be synthesized and pernicious anemia results
pernicious anemia
- decrease in RBC
- can affect memory and neuro function
- classic symptom is beefy red tongue (smooth)
pain
vomiting
loss
appetite
tarry
clinical manifestations of gastritis:
- epigastric ______(may be exacerbated by spicy foods)
- nausea and ____________
- weight ________
- decreased __________
- __________ black stools
atrophic gastritis
what type of gastritis might present with no symptoms?
dehydration
bleeding
in patients with acute gastritis or exacerbations of chronic gastritis, there may be evidence of _______________ or upper GI ______________. with significant fluid or blood loss, the patient may develops signs of hypovolemic shock which include pallor, tachycardia, and hypotension
endoscopy
an upper Gi x-ray series or _____________ and histological examination of a tissue specimen obtained by biopsy may be useful for ruining out disorders that can suggest gastritis, such as gastric polyps and gastric neoplasms
endoscopy with biopsy
gold standard for diagnosing gastritis
urea breath test
detects if you have active infection with H pylori.
- baseline test is first obtained
- swallow a capsule that has urea in it and Carbon-13. blood carries the CO2 to the lungs and is expelled in the breath.
- the amount of CO2 is compared to the baseline sample. a positive test reveals low levels levels of exhaled Carbon-13.
6-12
clear
heavier
solid
treatment of gastritis:
GI rest should be provided by __-___ hours of NPO status, then slow reintroduction of ______ liquids (broth, tea, gelatin, carbonated beverages) followed by ingestion of _________ liquids (cream soups, puddings, milk (careful can make better at first then make it worse)), and finally a gradual reintroduction of ________ foods.
spicy
caffeine
NSAIDs
patients with gastritis should avoid:
- ________ foods
- decaffeinated coffee
- ___________
- ___________
- citrus
- aspirin
6
how many small meals should a patient with gastritis consume?
antacids
used for gastritis
- decrease the acidity of the stomach does not prevent the acid from being produced
PPI
30-60 mg IV twice a day to maintain a gastric pH greater than 4
sucralfate
provides a physical barrier
- mucosal barrier fortifier
- 1 hour before and 2 hours after meals and at bedtime
- food may interfere
- do not give within 30 min of other drugs especially antacids
b12
what vitamin is given with chronic gastritis?
vagotomy
- used for gastritis for severe hemorrhagic
- surgery to sever the vagus nerve to reduce secretion of acid within the stomach
- The vagal nerve does supply the proximal ⅔ of the stomach
- Decreases amount of stomach acid produced
- Increase in infections
partial or total gastrectomy
- used for gastritis that causes severe hemorrhagic gastritis
- removal of the stomach
- Part or all of the stomach is removed
- Intestine joined to stomach
Pyloroplasty
- used for hemorrhagic gastritis
- enlarges the pylorus opening
- widens the pylorus to guarantee stomach emptying even without vagus nerve stimulation
infection
semi fowlers
NG
bowel
Vagotomy and gastric resection nursing interventions:
- Open surgery
- Monitor the incision for __________
- place the patient in ________ _________ to maintain lung expansion
- Monitor ______ tube drainage
Scant normal in first 12-24 hours
Do not reposition
- If you feel like your NG is not draining properly call the doctor
- Monitor _________ sounds: Guides how much food you can give patient
B12
D
folate
teach the patient to take vitamin and mineral supplements due to decrease in absorption:
- vitamin ________
_ vitamin _______
- calcium
- iron
- ___________________
gastric ulcers
- normal gastric acid secretion with prolonged emptying
- 90% associated with H pylori
duodenal ulcers
- increased gastric acid production
- increase stomach emptying
- 70% associated with H pylori
peptic ulcer disease
erosions are breaks in the surface epithelium that do not have measurable depth.
- this term is used broadly to include ulcerations and erosions in the stomach and duodenum from a variety of causes.
- types include gastric and duodenal
- occur between the ages of 25-64 years of age majority of the time
- equal among men and women.
duodenal ulcers
- make up about 80% of peptic ulcers, affect the proximal part of the small intestine following a chronic course, and are characterized by remissions and exacerbations (with complications that necessitate surgery in about 5% to 10% of patients).
- More common in O blood type
- Pain in right epigastrum: 2-3 after meals, Bedtime, Wake up between 1-2 a.m.
- Pain relieved with food
gastric ulcers
- chronic ones often occur in the lesser curvature of the stomach near the pylorus
- cause pain during the meal
- gnawing substenral pain
- malnourished
- pain is in the left midline area
gastrodudoenal
peptic ulcer disease occur in ______________ mucosa as this tissue cannot withstand digestive action of gastric acid and pepsin.
H pylori
in a peptic ulcer resulting from ____ _________, acid is not the dominant cause of bacterial infection but contributes to the consequences
NSAIDs
peptic ulcer disease resulting from ___________ has both topical and systemic origins
pain
what is the number one most common symptom of peptic ulcer disease?
duodenal
burning epigastric pain aggravated by fasting and improved with food or antacids (which neutralize the acid) is a symptom complex associated with a ___________________ ulcer.
gastric
with a __________ ulcer, pain is triggered or worsened by eating, usually occurring shortly after meals with little or no relief from antacids
endoscopy
peptic ulcer disease is diagnosed during __________, laboratory, and radiological tests.
- upper GI _____________ is the preferred procedure
Noninvasive testing
__________ _________ for PUD includes serum antibody testing, urease breath testing, and stool antigen testing.
CBC
a ________ is collected with PUD to rule out ulcer perforation
WBC
peritonitis is diagnose with _______. which is a complication of PUD.
low hematocrit
a complication of PUD is anemia which is diagnosed with a _______ ___________ level.
4-8 weeks
how long does somebody with an ulcer caused by H-pylori take antibiotics for?
antacids
used for peptic ulcer disease and neutralize gastric acid
H-2 receptor antagonists
used for peptic ulcer disease and work by decreasing acid production.
- ranitidine
- nizatidine
- cimetidine
- famotidine
- block gastric acid secretion stimulated by histamine, gastrin, and acetylcholine
perforation
complication of peptic ulcer disease that can turn into penetration into attached sutures and obstruction.
- sudden severe pain
and absent bowel sounds
- rigid abdominal muscles
gastric adenocarcinoma
there is an increased risk of ___________ _____________________, a malignant tumor arising from glandular tissue, in patients with H pylori
hemorrhage
caused by bleeding from granulation tissue or erosion of an ulcer into an artery or vein.
- complication of peptic ulcer disease
Mallory-weiss syndrome
complication of PUD that is characterized as a tear in the mucosa at the gastroesophageal junction that can occur as a result of severe vomiting, trauma, or seizures
peritonitis
- PUD complication that is a surgical emergency and life threatening
- starts with hyperactive bowel sounds, sudden severe pain which may radiate to the right shoulder
- cardinal signs: abdominal pain, tendernes, distention
- patient assumes a fetal position to decrease tension on the abdominal muscles
- pain is worse with movement
- can turn into bacterial septicemia and hypovolemic shock
- increased WBC
- peristalsis diminishes, paralytic lies develops (no bowel sounds)
board
fever
tachycardia
urinary
hiccups
nursing care for peritonitis (complication of PUD):
- assess for abdominal wall rigidity classic finding is a _____________ like abdomen
- monitor for __________ b.c of the infectious process
- assess for ______________ in response to fever and decreased circulating blood volume
- observe for dry mucous membranes and decreased _______________ ____________ seen with third spacing
- N/V may be present
- _________________ may occur from diaphragmatic irritaiton
- keep NPO and prepare for surgery
- report and document findings
- administered ordered fluids and antibiotics
surgical management
PUD:
- only required with non healing and bleeding ulcers
- minimally invasive procedures allow ulcers to be removed or bleeding controlled
- most have oversewing of a bleeding ulcer, or a patch of a perforated ulcer or distal gastrectomy
- major operations include bilateral vagotomy, pyloroplasty, and gastrectomy
- more conventional surgical interventions are indicated for perforation, lack of response to conservative treatment, suspected cancer, or complications
pyloroplasty
- used for PUD
-this is a drainage procedure
- longitudinal sectioning of pyloric ring
- incision is closed traverse
- going to increase the pylorus opening to allow the stomach to empty faster
curling's stress ulcer
- related to ischemia due to decreased blood flow to GI and mucosal damage
- develops 24 hours after a burn
- related to increased acid due to increased intracranial pressure or over secretion of cortisol
-sepsis
GI bleed
- life threatening
- high morbidity and mortality
- hemoglobin target is a 7 for optimal mortality
- risk for dehydration and electrolyte imbalance
- hypovolemia
NS or LR
what two fluids are given for hypovolemia related to a GI bleed?
gastric ulcer
GI bleeped with bright red or coffee ground vomitius (hematemesis)
duodenal ucler
GI bleeding with Selena (tarry or dark, sticky) stools
decreased
increased
peripheral
confusion
H and H
key features of a GI bleed:
- ____________ BP
- ______________ HR
- weak ________________ pulses
- acute _________________ in older adults
- vertigo
- dizziness or light-headedness
- syncope
- decrease in _____ and ______
salem sump
nasogastric small vent tube within a large suction tube to use for a GI bleed
- has a vent to prevent adherence to the stomach wall
gastric lavage
- washing out of the stomach
- place the patient on the left side
- use approximately 300 mL at room temp NS, sterile water or tap water
- used for GI bleed
low intermittent suction
used for patients with GI bleed
- prevents adherence to the stomach to prevent injury
- a type of suction
nonselective beta blockers
- medication class used for esophageal varices
- propranolol
-carvediolol
EGD
- used to find a GI bleed
- can use somatostatin, clips or epinephrine
- patient will pass the clip
catheter directed embolization
intervention to stop bleeding for GI bleed
- using imaging to guide catheters or other instruments inside the vascular system. Through local anesthesia and optional mild IV sedation, patients are relaxed and pain-free during procedure. The Radiologist then uses coils, balloons, or particles to embolize (block) veins. By sealing a faulty vein or the blood flow to an abnormality it allows the body to help heal itself and redirect blood to where it is needed.
gastric cancer
- more common in lower socioeconomic groups
- affects males 2xs more than females
- causes are unknown
- diet appears to be a significant factor, with a diet rich in foods with additives such as smoked foods, pickles vegetables, and salted fish and meats increase the risk
- dietary nitrates have also been proposed as a possible cause
- greater in patients with low gastric acidity achlorhydria, such as those with severe atrophic gastritis associated with intestinal metaplasia and pernicious anemia
- malignant epithelial tumor that infiltrates the mucous producing cells of the stomach
distal portion
gastric cancer is most frequently found in the __________ _______________
gastric carinogensis
multifactorial and multistep process, starting from chronic gastritis and progressing over many years to atrophy, intestinal metaplasia, dysplasia, and eventually adenocarcinoma. The risk of developing gastric cancer correlates best with the severity and extent of atrophic gastritis and gastric atrophy.
late
indigestion
loss
epigastric
mass
ulcerlike
hematemesis
Clinical manifestations of gastric cancer:
- Often are asymptomatic until ___________ in their course
-_____________, anorexia, weight __________, vague _____________ pain, vomiting, and an abdominal __________
- The patient may experience ______________ pain unrelieved by antacids, typically occurring after meals.
- Because these symptoms are vague, patients and health-care providers tend to dismiss symptoms or treat the patient for acid disease, which makes early detection difficult.
- Massive ___________________ or melena, black tarry stools with a foul odor due to the degradation of blood in the small intestine and colon, is uncommon, but secondary anemia may occur after occult blood loss.
EGD (esophagogastroduodenoscopy)
the visual examination of the lining of the esophagus, stomach, and upper duodenum using a flexible fiber-optic endoscope
barium
biopsy
cytological
types of diagnostic tests for Gastric Cancer:
- ____________ x-ray studies
- endoscopic studies with ___________
- _______________ studies of gastric secretions
gastric dysplasia
abnormal gastric cells
- it is the universal precursor to gastric adenocarcinoma
- in severe cases gastric resection is considered when the abnormality is widespread or multifocal
laparoscopic
in early stages of gastric cancer, _____________________ surgery plus adjuvant chemotherapy(anthracycline such as 5-fluoruracil) or radiation may be curative option
dumping syndrome
- most common problem after a partial gastrectomy
- after pyloric resection or bypass, concentrated chyme (partially digested food) may enter the small bowel rapidly, causing abdominal distention
- early clinical manifestations include dizziness, tachycardia, pallor, sweating, and palpations
protein
carbs
lay down
drink
small
prevention of dumping syndrome:
- increase _______________
- decrease ____________
- decrease juice and sugary fruits
- _______ __________ after eating
- do not ___________ with meals
- __________ meals more frequently