GI Flashcards
What is Diverticular Disease?
Diverticula=small outpouchings of the colon that occur in rows. “Fingerlike”, mostly in sigmoid
Inc with age
Cause: low fiber, refined diet
What causes diverticula?
Formed when increased pressure in the bowel causes herniation of the bowel mucosa through the colon wall.
Bowel lumen narrowed due to hypertrophy of muscular tissue.
Define diverticula, diverticulosis and diverticulitis.
Diverticula: the actual finger like outpouches
Diverticulosis: indicates the actual presence of diverticula
Diverticulitis: inflammation in and around diverticular sac.
What are the manifestations of diverticular disease?
Pain, left sided, mild to severe, steady or cramping
Constipation vs inc defecation
N,V, low grade fever
Distended abd, mass in LLQ
What are the complications of diverticular disease?
Abscess
Peritonitis
Hemorrhage
Bowel obstruction
What are the diagnostic tests performed for diverticular disease?
Barium enema X-rays=free air Flexible sigmoidoscopy Colonoscopy CT scan-abscesses, inflammation Labs: Guaiac, WBC
What are the treatments for diverticular disease? (meds and diet)
Meds: metronidazole, ciprofloxacin, trimethoprim-sulfamethoxazole, rifaximin
Acute=IV antibiotics: cefoxitin, Piperacillin-tazobactum
IV fluids, NPO, TPN, surgery (peritonitis/abscess)
***Diet-high fiber, avoid seeds (AFTER bowel rest is completed)
What is a bowel obstruction and what can cause it?
Result of something blocking part of the intestine (mechanical obstruction) or a failure of the intestine to work properly (paralytic ileus).
Causes: Diverticulosis, UC, Crohns, Colon Cancer
What is the nursing care for bowel obstruction?
NPO CT scan, abd scan NGT to suction Bowel rest Surgery if unresolved by the above Monitor for infection, perforation, jaundice
When is Total Parenteral Nutrition used and how do you calculate it?
Used for longer term bowel rest
Must administer through CVAD
Monitor labs daily if inpt
Check glucose q 6 hrs
Calculate requirements for water (30 to 40 mL/kg/day), energy (30 to 45 kcal/kg/day, depending on energy expenditure), amino acids (1.0 to 2.0 g/kg/day, depending on the degree of catabolism), essential fatty acids, vitamins, and minerals.
Use a central venous catheter, with strict sterile technique for insertion and maintenance.
Monitor patients closely for complications (eg, related to central venous access, glucose levels, electrolyte and mineral levels, hepatic or gallbladder effects, volume, or lipid emulsions).
What is GERD?
A weak LES allows backward movement of gastric contents into the esophagus
Results in mucosal injury in the esophagus
Increase occurrence with age
May also be a result of pyloric stenosis or a motility disorder
What are the symptoms of GERD?
Burning sensation in esophagus, AKA Pyrosis
Regurgitation and sour tasting secretions
Dysphagia
Odynophagia
Chest pain
Chronic cough
Hoarseness
Explain the nursing management of GERD.
TEACH! Lifestyle modifications
Eat low-fat, high-fiber diet
Avoid irritants such as spicy or acidic foods, alcohol, caffeine, and tobacco
Do not eat or drink 2 hours before bed
Elevate the HOB
Weight loss
Give medications as prescribed
If no improvement, prepare for surgical repair
Fundoplication—wrapping a portion of the gastric fundus around the sphincter of the esophagus
What are some medications for GERD?
Antacids
H2 receptor antagonists
Proton pump inhibitors, or PPI
What is peptic ulcer disease?
Effects 5-10% of population
May result in duodenal or gastric ulcers
Results from Helicobacter pylori, or H-Pylori, infection
Excessive secretion of hydrochloric acid diminishes the protective effects of mucus secretion