LO1-2 Pathophysiology of GI Disorders Flashcards
Peristalsis
propel food bolus toward the stomach without involvement of brain stem
Portal vein
transports venous blood from the GI tract directly to the liver for processing of nutrients that have been absorbed
The cardiac sphincter
controls the amount of food that moves back up the esophagus
Chyme
the materials that exit through the pyloric sphincter
Duodenum
the portion of the small intestine that begins the absorption of nutrients and where the pancreas, liver and gallbladder connect to digestive system
Stomach absorbs
water, fat soluble substances
Alcohol is absorbed
rapidly in small intestine
primary role of the large intestine
is to complete the reabsorption of water
Abdominal disorders can result from
inflammation, infection, and obstruction
Gastroesophageal reflux
occurs when acid, normally localized to
the stomach, enters the esophagus
Other causes of gastroesophageal reflux are:
- Nicotine
- Fried or fatty foods
- Chocolate
- Coffee
- Citrus fruits and juices
- Peppermints
- Pregnancy
Esophagitis
Esophagitis is the irritation and inflammation of the esophagus caused by stomach acids and
digestive enzymes repeatedly refluxing up from the stomach
Esophagitis Signs and Symptoms
•Burning sensation in chest
•Pain when swallowing
•Dysphagia (caused by the narrowing of lower esophagus due to scarring resulting in food
sticking in the area)
•Bleeding if ulcers develop (noted by black stools, anemia and vomiting blood)
Gastritis
Gastritis is an acute or chronic inflammation of the gastric mucosa caused by an increase gastric
acid secretion.
Gastritis is often associated with alcohol ingestion, drugs, and stress.
Esophageal Varices
what is it
signs and symptoms
treatment
Condition: hemorrhagic
Pain, bright red blood, Melena, shock
Common with hepatic disease and often result from portal hypertension caused by cirrhosis of the liver
Tachy, hypotension, pale cool clammy skin
Give fluid to map of 65
Check peripheral pulses
Airway issues
Bowel Obstruction
what is it
signs and symptoms
treatment
Signs include
- abdominal pain and fullness.
- Rigidity usually all over
- Look pregnant
- Diarrhea initially
- Constipation may eventually result.
- Nausea and vomiting are common in later stages
- Extreme cases have feculent breath
Management
- watch for sepsis
- Fluid resuscitation can be useful
- Needs fluid even if map is good
Peptic Ulcer Disease
Protective layer of the stomach and small intestine erode allowing the acid to eat into the lining of the stomach
Condition: Acute inflammation
Pain, often relieved by food intake, bleeding
Upper GI bleed
Mouth, stomach, esophagus
Condition: hemorrhagic
Pain, hemorrhage
Upper GI bleeding: The upper GI tract is located between the mouth and the upper part of the small intestine.