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Gastrointestinal Lecture
upper GI conditions
131
Nursing
Undergraduate 3
03/28/2011

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Term
Main function of the GI tract
Definition
to supply nutrients to the body's cells
Term
LES
Definition
lower esophageal sphincter
-separates the esophagus & stomach
-remains contracted during swallowing, belching, or vomiting
Term
Why does the LES remain closed?
Definition
to prevent aspiration, reflux
Term
Subjective Assessment of GI system
Definition
-abdominal pain
-N/V/D/C
-distension
-heartburn
-jaundice
-changes in dietary patterns
-gas, bloating
medication usage
Term
Why do you want to ask about changes in dietary habit?
Definition
-it may reveal or be r/t more symptoms the patient may not have mentioned
Term
Why do you want to ask the patient about medication usage?
Definition
-to determine if there are other symptoms the patient may not have mentioned
-ask if they know why they are taking it.
Term
physical assessment: mouth
Definition
check membranes intact, moist, any ulcers or lesions
Term
physical assessment: abdomen
Definition
look, listen, feel,
Term
physical assessment: abdomen - look
Definition
skin color, symmetry, masses, movement
Term
physical assessment: abdomen - listen
Definition
BS in all 4 quadrants
Term
physical assessment: abdomen- feel
Definition
percussion & palpation
Term
Upper GI Barium Swallow

Upper GI with small bowel follow through

Lower GI series or Barium Enema
Definition
-diagnostic tests
-Barium is a contrast
-sticks to lining of esophagus, stomach, intestines
-once ingested or given as an enema X rays are taken to visualize the organs
Term
Ultrasound of abdomen
Definition
Diagnostic test
-allows for visualization of organs (kidneys, gallbladder, liver, stomach, kidneys, and bladder)
-detects abdominal masses, bililary & liver disorders, gallstones
Term
EGD
Definition
esophagogastroduodenoscopy
-directly visualizes the lining of the esophagus, stomach, duodenum using an endoscope
Term
Why is an EGD performed?
Definition
-to diagnose inflammation, ulcerations, tumors
-biopsies may also be taken
Term
pyloric sphincter
Definition
duodenum & stomach
Term
sigmoidoscopy & colonoscopy
Definition
directly visualizes the colon
Term
Why is a sigmoidoscopy & colonoscopy performed?
Definition
-to diagnose inflammatory bowel disorders, polyps, tumors, diverticulosis,
-biopsies may be taken
Term
As the nurse, what do you need to monitor for in a patient pre-GI procedure?
Definition
-electrolytes
-informed consent
-make sure pt has been NPO 6-8 hrs prior to procedure
-clear liquids
-allergies/medications
**make sure bowel is cleaned out
Term
As the nurse, what do you need to monitor for in a pt post GI procedure?
Definition
Assess for bowel sound (pt cannot start drinking/eating without return of BS)
-verify gag reflex
Term
Risks of endoscopy
Definition
ileus
perforation
constipation
Term
What is the most common manifestation of GI diseases
Definition
Nausea and Vomiting
Term
N/V are found in unrelated cases to the GI tract such as...
Definition
-pregnancy
-CV problems
-Metabolic disorders
-side effects of drugs*
Term
What is important in making a diagnosis in N/V?
Definition
color and content of emesis
Term
What does emesis that contains partially digested foods several hours after eating indicate?
Definition
delayed emptying or obstruction
Term
What does blood in emesis indicate?
Definition
bleeding in the GI
Term
What does coffee ground emesis indicate?
Definition
blood in stomach for a long time; reacted to gastric secretions
Term
Assessment of pt c/o N/V:
General Appearance
Definition
-lethargic, pale
-moist mucos mebranes
-skin turgor
Term
Assessment of vomit?
Definition
color and consistency
Term
N/V: Assessment - I & O
Definition
Urinary output
-decreased, concentrated
Term
N/V: Assessment -Diagnostic findings
Definition
-altered electrolytes (potassium)
-abnormal endoscopy or x-ray
Term
Complications of N/V
Definition
-dehydration
-electrolyte imbalance
-weight loss
-pulmonary aspiration
Term
How do you prevent pulmonary aspiration of N/V?
Definition
sit pt up, turn on side
Term
Treatment of N/V
Definition
1. NGT to LWS
2. Drugs
3. Nutritional Therapy
Term
Why is NGT to LWS used as treatment for N/V?
Definition
to decompress the stomach
Term
What type of drugs are used for N/V?
Definition
antiemetics such as:
promethazine
reglan
zofran
compazine
Term
What type of nutritional therapy is provided as treatment for N/V?
Definition
active vomiting= IV fluids
once vomiting resolved= clear liquids, GRADUALLY add carbs & low fat foods
Term
GERD
Definition
gastroesophageal reflux disorder
*most common GI problem in adults
Term
When does GERD occur?
Definition
-when the esophagus is overwhelmed by acid from the stomach
Term
chronic symptoms of mucosal damage secondary to reflux of gastric contents into the lower esophagus
Definition
GERD
Term
Causes of GERD
Definition
not one single cause, but many predisposing factors
Term
Predisposing factors of GERD
Definition
1. Incompetent LES
2. Hiatal Hernia
3. Decreased esophageal clearance/impaired esophageal mobility
4. Decreased gastric emptying
5. Obesity, pregnancy, anything that increases ab. P
Term
Symptoms of GERD
Definition
-Heartburn > 3-4x/week
-respiratory symptoms
-hoarse voice
-spre throat/feeling like a lump in throat
-regurgitation
-belching, gas
Term
Why do respiratory symptoms occur with GERD?
Definition
-if acid moves high enough in esophagus, it can irritate airways (chronic coughing, wheezing, asthma exacerbation, hoarse voice)
Term
Complications of GERD
Definition
1. Esophagitis 2. Barret's Esophagus 3. Respiratory Complications 4. Dental erosion
Term
What is esophagitis?
Definition
inflmmation of esophagus from irrtatns or gastric reflux leads to ulcer formation
Term
What is Barrett's Esophagus?
Definition
-precancerous esophageal metaplasia associated w/ GERD
Term
What types of respiratory complications can occur with GERD?
Definition
cough, bronchospasm, asthma, chronic bronchitis, aspiration pneumonia
Term
How does dental erosion occur as a complication of GERD?
Definition
acid erodes oral cavity, teeth
Term
What diagnostic test is used for GERD?
Definition
EGD
-assess LES competence & visualizes degree of inflmmation
-biopsies may be taken
Term
Collaborative Care of GERD: lifestyle modifications
Definition
AVOID triggers
Nutritional Changes
Term
Types of nutritional changes
Definition
1. Decrease fatty foods, chocolate, caffeine, peppermint, acid foods
2. Avoid dairy at bedtime
3. Small frequent meals
Term
Collaborative Care of GERD: Education
Definition
1. Smoking cesssation
2. Elevate HOB 30 degrees(4-6" blocks)
3. Remain upright after eating (2-3 hs)
4. Avoid eating late at night
Term
First line of medication defense for GERD
Definition
Antacid- Mylanta. WHY?
-decreases stomach acid
-give 1-3 hrs AFTER eating
Term
What medication is provided for GERD if no improvement of antacids?
Definition
-PPI or H2 blocker a 6 week course
Term
What are PPI?
Definition
proton pump inhibitors
Nexium, Prilosec, Prevacid
-decrease gastric acid secretion by blocking the proton pump mechanism that secrets hydrogen ions
Term
What are H2-blockers?
Definition
histamine receptor blockers
Tagament, Zontac, Pepcid
-block action of histamine on the H2 receptors (leads to decrease in acid secretion)
Term
Surgical treament for GERD
Definition
-last resort
-GOAL: make LES function better
-nissen fundolication
Term
What is Nissen Fundoplication?
Definition
-fundus of the stomach is wrapped around the lower part of the esophagus to reinforce the barrier
-causes a tigher hold around esophagus
-req small frequent meals
Term
Post Surgical Care for GERD
Definition
1. Monitor for respiratory complications
2. If NGT present, maintain patency*
3. Encourage deep breathing
4. Monitor incision or lap sites
5. Pain management
6. Diet (start with clear and gradually advance)
Term
Hiatal Hernia
Definition
herniation of a portion of the stomach into the esophagus through an opening in the diaphragm
Term
Types of hernia
Definition
sliding & paraesphageal(rolling)
Term
sliding hearnia
Definition
junction of the stomach & esophagus is above the opening in the diaphragm & part of the stomach slides through the opening when supine
Term
most common type of hernita & does not need to be emergency fixed
Definition
sliding hernia

LES is above diaphram w/ fundus of stomach above diagphram; slides up & down
Term
Rolling or paraesophageal hiatal hernia
Definition
esophagogastric junction remain in the correct position BUT the fundus & greater curvature of the stomach roll p through the diaphragm forming a pocket along side the esophagus
**medical emergency
Term
Causes of Hiatal Hernia
Definition
1. Structural Changes
-weakening of diaphragm muscles around the opening
2. Increased intra-abdomminal P
-obesity, pregancy, tumors, heaving lifting
Term
Clinical manifestations of Hiatial Hernia
Definition
-asymptomatic
-similar to GERD (heartburn after eating/lying down)
-dysphagia
-bending over may bring a sharp pain (relieved w/ standing)
Term
complications of hiatial hernia
Definition
1. GERD
2. Esophagitits
3. Hemorrhage
4. Ulcerations in the herniated portion
5. Narrowing of the Esophagus
6. Regurgitation
Term
Diagnostic studies for Hiatial Hernia
Definition
1. Barium Swallow
2. Endoscopy
Term
Treatment for Hiatial Hernia
Definition
Lifestyle Modifcations:
-avoid triggers
-avoid heavy lifting/straining
-eliminate ETOH, smoking
-elevate HOB
-Medications PPI & H2 blockers
Term
Surgical Treatmentof hiatial Hernia
Definition
-reduces herniated stomach back into abdomen
-nissen fundocplication
Term
-Occurs in pts >65 y/o
-mortality 6-10%
-repeat bleeding episode w/in 5 years
Definition
Upper GI bleed
Term
Causes of Upper GI bleed in eosphagus
Definition
-GERD
-Mallory-Weiss Tear (tear above LES d/t reching/vomiting)
-Esophageal Varices(varicose vains in esophgus; cirrosis, HTN)
Term
Causes of Upper GI bleeding in Stomach & Duodenum
Definition
-bleeding ulcers
-medication use (NSAIDs)
-Stress related Mucosal Disease (physiological stress due to hospitalizations, burns, trauma)
Term
Signs & Symptoms of GI bleeding
Definition
1. Bright red blood in vomit (arterial bleed, no contact w/ GI acid)
2. Coffee ground emesis
3. Melena- black tarry stools
Term
Management of GI bleeding
Definition
-80% occur spontaneously
-Hx of pt important
-Physical Exam (VS, S/S of shcok, abdominal assessment)
-Labs (CBC, CMP, PTT, ABG, Type & Cross)
-IV lines (16-18 gauges; LR, fresh frozen plasma (FFP), blood, albumin)
-foley (monitor I & O, make sure kidneys are functioning)
Term
Diagnostic Treatment for GI bleeding
Definition
Identify bleed and cauterize
Term
When is Medication treatment given for GI bleeding?
Definition
once bleeding stops
PPI & H2 blockers
Term
Goal of treatment for GI bleeding
Definition
-no more bleeding
-cause of bleeding ID & tx
-normal hemodynamic state
-minimal anxiety & pain
Term
Inflammation of the gastric mucosa as a result of the breakdown in the normal gastric mucosal barrier
Definition
gastritis
Term
acute Gastritis
Definition
sudden, self limiting, lasts hours to few days
Term
chronic gastritis
Definition
gradudal and prolonged course, can last weeks/months
Term
causes of gastritis
Definition
1. drugs( ASA, NSAIDS, Digitalis, Fosamax (osteoprosis) --> irritate mucosa
2. diet(ETOH binge drinking, large quantities of spicy foods)
3. H. Pylori Infections
Term
Clinical Manifestations of Acute Gastritis
Definition
anorexia
N/V
epigastric tenderness
feeling of fullness
Term
Clinical manifestations of chronic gastritis
Definition
-anorexia, n/v, epigastric tenderness, feeling of fullness
-anemia due to lack of absorpbency of cobalamin- vit B 12 (essential for RBC growth & maturation)
Term
Diagnostic Studies of Gastritis
Definition
-endoscopy with biopsy
-breathe test (blow into paper bag, spray mouth, blow into another paper bag, check presence)
-urine
-blood
-stool tests
Term
treatment of acute gastritis
Definition
-eliminate the cause & avoid in future
-tx depends on symptoms
-drug therapy
Term
drug therapy treatment for acute gastrtitis
Definition
-antacids work by raising gastric pH greater than 6 (turns)
-H2 blockers/ PPI
Term
Treatment of chronic gastritis
Definition
-evaulate & eliminate the specific cause
-cessation of ETOH, smoking
-lifestyle modifications as w/ acute gasttitis
-clear H. Pylori
Term
How is H pylori cleared in patients with chronic gastritis?
Definition
-antibiotics & PPI
-amoxicillin, Bioxin, Flagyl
Term
Teaching to a patient w/ chronic gastritis
Definition
-maintain a bland diety with 6 small meals a day;
-take tyelnol, instead of NSAIDS
-take antacids AFTER meals
Term
-Erosion of the GI mucosa from HCL acid & Pepsin
-can occur in any portion of he GI tract
Definition
Peptic Ulcer Disease PUD
Term
Types of PUD
Definition
Gastric and Duodenal
Term
less common than duodenal
more prevalent in women; >50y/o
high incidence of mortality
Definition
Gastric ulcers
Term
Risk factors of Gastric Ulcers
Definition
Medications
-smoking
-bile reflux
-H pylori infection
Term
Symptoms of gastric ulcers
Definition
dyspepsia occurs 30-1 hr after eating
-pain occurs high in epigastrium (burning pain)
-food may aggravate symptoms
-RARELY occurs at night
Term
80% of all ulcers
occurs at any age (common 35-45 y/o)
Definition
Duodenal Ulcers
Term
Risk Factors of Duodenal Ulcers
Definition
* H. Pylori most common cause
-ETOH
-smoking
-high HCL secretion
Term
High risk populations of duodenal ulcers
Definition
COPD
Cirrhosis
Pancreatitis
Kidney disease
Term
Symptoms of Duodenal Ulcers
Definition
-pain occurs 2-5 hrs AFTER eating (cramp like)
-foods acts as a buffer
-pain in epigastric region
-often OCCURS at night
Term
Diagnostic Test for duodenal ulcers
Definition
-endoscopy (visualizes mucosa, biopsy)
-H. Pylori test (stool, blood, breath)
-Labs ( CBC for anemia; LFT for cirrosis, stool for occult blood)
Term
sharp, stabbing pain in upper abdomen after eating a heavy meal
Definition
gallbladder
Term
Goal Treatment for ulcers
Definition
to decrease gastric acid,
enhance mucosal defense &
decrease harmful effects on mucosa
Term
Treatment for ulcers
Definition
dietary modifcations
-smoking & ETOH cessation
Term
Drug therapy for ulcers
Definition
H2 blockers - promote ulcer healing
PPI - reduce gastric secretion
Antibiotics - if H. pylori infection
-antacids- adjunct therapy, increase gastric pH
-cytoprotective drugs (Carafate - forms a protective covering over the ulcer and prevents further erosion)
Term
T/F Surgical options for Ulcers are common
Definition
false; rare
Term
Types of Surgical options for Ulcers
Definition
1. Gastrectomy (Bill Roth 1 & Bill Roth 2)
2. Vagotomy
3. Pyloroplasty
Term
Types of Surgical options for Ulcers
Definition
1. Gastrectomy (Bill Roth 1 & Bill Roth 2)
2. Vagotomy
3. Pyloroplasty
Term
Bill Roth I
Definition
removal of part of the stomach & reattachment to the duodenum
Term
Bill Roth II
Definition
removal of part of the stomach and reattachment to the jejunum
Term
Vagotomy
Definition
several parts of the vagus nerve to the stomach (to decreae gastric acid secretion)
Term
pyloroplasty
Definition
enlargement of the pyloric sphincter to allow for easier passage of food from the stomach
Term
complications of PUD
Definition
-hemorrhage
-perforation
-gastric outlet obstruction
Term
upper GI bleed
Definition
hemorrhage
Term
Assessment when hemorrhage occurs
Definition
*VS (BP, pulse, RR)
-abdominal assessment
-s/s of shock
-assess vomit (coffee ground vs bright red bleeding)
-assess stool (melena)
-labs
Term
Labs performed for hemorrhage
Definition
CBC, CMP, PTT, ABG, Type and cross
Stool and vomit for occult blood
Term
Treatment for hemorrhage
Definition
-Large bore IV x 2
-IVF, Blood, FFP
-Monitor I&O, VS
-PPI
-80-85% will stop bleeding spontaneously.
-Endoscopy to visualize and cauterize bleeding
Term
Most lethal complication of GI
Definition
perforation
Term
hole in the mucosa allowing for gastric or duodenal contents to spill into peritoneal caviry
Definition
perforation
Term
T/F small perforations may seal themselves
Definition
true
Term
T/F large perforations are not a medical emergency
Definition
FALSE
*medical emergency that requires surgery
Term
what can spill into the periotneal cavity w/ perforations
Definition
air, saliva, fod particles, HCL acid, bacteria
Term
Symptoms of perforation
Definition
-sudden, dramatic onset
-severe abdominal pain, unrelieved with meds; may spread to back
-abdomen is RIGID & BOARDLIKE (8pack)
-absent BS
-N/V
-hypovolemia occurs
Term
If perforation is left untreated, what can occur w/in 6-12 hrs?
Definition
bacterial peritonitis
Term
goal of treatment of perforation
Definition
-stop spillage of contents into cavity
Term
Treatment of perforation
Definition
-NGT prevent aspiration/decompress stomach
-increase blood volume via IVF, albumin, blood
-fix perforation (surgery)
Term
-occurs from edema, inflmmation or spasm
Definition
Gastric Outlet Obstruction
Term
symptoms of gastric outlet obstruction
Definition
-pain worse at end of day d/t stomach filling/dilating
-relief w/ belching/vomiting (projfectilve)
-vomit contains food particles
Term
Manangement of Gastric Outlet Obstruction
Definition
-NGT for decompression
-correct any electrolyte problems
-endoscopy to determine cause
Term
Type of tx for gastric outlet obstruction if ULCER is the cause
Definition
-tx w/ PPL, H2 blockers
Term
Tx for gastric outlet obstruction if STRUCTURAL problem
Definition
-balloon dilation
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