GI MDT Glacken Flashcards
Diarrhea can be defined as
More than 3 bowel movements in a day
Liquidity of feces
Acute diarrhea lasting less than two week is most commonly caused by
Bacterial toxins
Infectious diarrhea can be transmitted by what
Fecal-oral contact
Food
Water
What is the incubation period of infectious sources of dire health
12-72 hours
Most common cause of acute gastroenteritis
Infectious agents
How is acute gastroenteritis as a diarrheal disease defined
3 pre more BM a day or at least 200g of stool a day
Rapid onset lasting less than 2 weeks and may be accompanied by nausea, vomiting, fever or abdominal pain
What are common findings on examination in patients with acute viral gastroenteritis
Mild diffuse abdominal tenderness on palpation
Abdomen is soft, but may be guarding
What is the treatment for viral gastroenteritis
Usually self limiting and supportive measures (fluid repletion)
No antivirals needed
What is the mechanisms for infectious gastroenteritis
Adherence
Mucosal invasion
Enterotoxin/cytotoxin production
Acute gastroenteritis as a diarrheal disease can lead to what
Dehydration and loss of electrolytes and nutrients
A diagnosis of gastritis requires what
Histopathologic evidence of inflammation
Gastritis only involves what
The stomach
What are the most common causes of gastritis
Chronic NSAID use
Chronic alcohol use
Trauma
If gastritis does not resolve with conservative management, refer for what
Endoscopy and H. Pylori testing
Chronic diarrheal diseases may be classified as
Osmotic
Inflammatory
Secretory
Chronic infections
Malabsorption syndromes
Motility disorders
What can cause osmotic diarrhea
Medications
Zollinger-Ellison syndrome
Inflammatory diarrhea occurs when
Mucosal lining of the intestine is inflamed
What is happening during Secretory diarrhea
Increase in secretory activity
Chronic infections if diarrhea can be caused by
Parasites
What are some malabsorption diseases
Celiac disease
Whipple
Crohn disease
Lactose intolerance
What is an example of a motility disorder
Irritable bowel syndrome
What is the difference between inflammatory diarrhea and non inflammatory
Inflammatory is bloody
Non-inflammatory is just watery
What is a common cause of inflammatory diarrhea
Shigella
Salmonella
E. coli
E. Coli O157:H7
Community outbreaks of diarrhea usually suggest what
Viral etiology or food source
Patients with recent family illness suggest what
Infectious origin
Acute non-inflammatory diarrhea is usually milder and caused by what
Virus
Common cause of acute non-inflammatory diarrhea
Rotavirus
Norwalk virus
The term “food poisoning” usually denotes what
Disease caused by toxins present in consumed food
Preformed toxin incubation period
1-6 hours
When incubation period is longer (8-16 hours) the toxin is usually produced when
After being ingested
Non-inflammatory diarrhea illness is
Mild and self-limited
If diarrhea worsens or persists for more than 7 days, stool should be
Sent for leukocyte, ovum and parasite eval with bacterial culture
Medevac for diarrhea when
Signs of inflammatory with fever, bloody diarrhea, or abdominal pain
6 or more stools in 24 hours
Signs of dehydration
Differential for diarrhea
Food poisoning
Inflammatory bowel disease
Malabsorption
Medication effect
Laxative abuse
Labs for diarrhea
CBC w diff
Fecal leukocyte
Fecal O/P
Stool culture
Initial care for diarrhea
Treat symptomatically
What are the categories of gastritis
Erosive and hemorrhagic
No erosive and non specific
Specific type
Uncommon causes of gastritis
Caustic ingestion and radiation
Symptoms of gastritis
Epigastric pain
Nausea vomiting
Upper GI bleed with “coffee ground” vom
Most sensitive method of diagnosis for gastritis
Endoscopy
Treatment for NSAID caused gastritis
D/C NSAIDs.
Proton pump inhibitor 2-4 weeks (omeprazole 20-40mg)
Treatment for alcohol caused gastritis
No alcohol
H2 receptor agonists
PPI
Disposition for gastritis
Medevac
Non erosive, non specific causes of gastritis
H. Pylori
Pernicious anemia
Eosinophil gastritis
Causes of constipation
Decrease in fiber intake with decrease fluid intake
Medications
Structural abnormalities
Slow colonic transport
IBS
Hirschsprung disease
How will getting an upright chest film for a patient who is constipated help
Detect the presence or absence of an obstruction
First line treatment for constipation
Strict diet changes
Increase water
Fiber supplementation (Metamucil)
Second line treatment for constipation
Emollients - colace 100mg 1-2x a day
Stimulants - bisacodyl 5-15mg PO daily
Saline laxative - milk of mag
Hyperosmolar agents - sorbitol
Third line treatment for constipation includes
Suppositories or enemas
If uncomplicated constipation disposition is what
Retain on board
Complicated or chronic cases of constipation disposition is
Refer to gastroenterologist
Stage I hemorrhoids are
Internal and confined to the anal canal
Stage II hemorrhoids defined
Gradually enlarge and protrude from anal opening
Stage III hemorrhoids
Require manual reduction after bowel movements
Stage IV hemorrhoids
Remain chronically protruding and unresponsive to manual reduction
What is the definitive care for internal hemorrhoids
Surgical banding or band ligation
Describe external hemorrhoids
Tense bluish nodule covered with skin.
Few centimeters in size
Type of diet for hemorrhoids
High fiber diet increase water intake
Treatment for external hemorrhoids
Warm sitz bath
Anesthetize skin with 1% lido, 30g needle
Eclipse of skin excised and clot evacuated