GI Flashcards
gm neg bacteria that leads to diarrhea and is also linked to guillain barre (GBS)
campylobacter jejuni
white nails with “ground glass” appearance
distal band of reddish brown
seen in liver dz (ie cirrhosis)
Terry’s nails
true or false…
sulfasalazine is first drug of choice for inflammatory bowel disease
true
prolonged PPI use can decrease what levels?
B12
what can you give a person whos come into close contact w someone with Hep A and has not been previously vaccinated
immunoglobulin
what hemorrhoid stages for band ligation vs hemorrhoidectomy
band ligation= stge I, II or III
hemorrhoidectomy for stage III or IV hemorrhoid with chronic bleeding or a stage II hemorrhoid that is acutely thrombosed.
It is recommended that patients with a single first-degree relative with colon cancer diagnosed at or after age 60 should begin screening at age….
40
*with colonscopy
chief cells produce…
pepsinogen
pepsinogen –> pepsin in acidic environment
HCL is secreted by….
parietal cells
gastrin
histamine
Ach
all stimulate…
parietal cells (which produce HCl)
somatostatin (delta cells) inhibits…
gastrin
large intestine does mostly what absorption?
water
most of the small intestine absorption is done by the…
duodenum
secretin and CCK are in the…
duodenum
3 MC causes of infectious esophagitis
candida
CMV
HSV
linaer, yellow white plaques on EGD
candida
tx= fluconazole PO
large superficial, shallow ulcers on EGD
CMV
tx= gancilovir
small, deep ulcers on EGD
HSV
*tx= acylovir
first line dx= endoscopy
if endoscopy normal, esophageal manometry
gold standard- 24h ambulatory pH
GERD
loss of Auerbachs plexus
achalasia
failure of LES relaxation, lack of peristalsis
*dysphagia to both solids and liquids
gold standard- esophageal manometry
**“birds beak of LES”
achalasia
pharyngoesophageal pouch
dysphagia, regurg of undigested food
dx- barium swallow
(fake diverticulum bc only mucosa involvement)
Zenker’s diverticulum
*if lg enough, remove diverticulum
small, can observe
full thickness rupture of distal esophagus
*RF= repeated vomiting (ie bulimia, etoh)
crepitus, pneumomediastinum
dx= chest CT
boerhaave’s syndrome
**must repair surgically
longitudinal mucosal lacerations of gastroesophageal junction or gastric cardia
Mallory weiss tear
*us self limiting
MC type of hiatal hernia
GE junction and stomach slide into mediastinum
Type 1 (sliding)
MC esophageal neoplasm
RF= tobacco, etoh
upper 1/3 of esophagus
squamous cell
RF= Barrett’s esophagus
lower 1/3 of esophagus
Adenocarcinoma