gi Flashcards
what nerve supplies the rectum
inferior rectal nerve
inferior rectal nerve origin
S4
treatment of H pylori
PPI and 2 antibacterials - omeprazole, clarithromycin and amoxicillin/metronidazole
how to identify H pylori
stool antigen test or urea breath test
difference between gastric and duodenal ulcers
duodenal ulcer is relieved by food or antacids but provide minimal relief for gastric ulcer pain
treatment for acute hepatitis
supportive
treatment for chronic hepatitis
interferon alpha or antiviral tenofovir
what is hep C
a heamatological RNA virus that is acute but usually becomes chronic
how to test for hep C
PCR
is there a vaccine for hep C
no
what is hep B
a heamotological virus with a vaccine that is acute but 20% become chronic
what does HBsAG mean
previous infection, acute or chronic
what does antiHBsAg mean
clinical recovery and immunity
what does HBeAg mean
highly infectious
what does IgM antiHBc mean
acute infection
what does IgG antiHBc mean
chronic infection
what does hep E come from
contaminated or undercooked food - spread via the faecal oral route
is there a vaccine for hep E
no
hep D when does it arise
only with hep B
staphylococcus aureus found
cooked meats and cream products
bacillus cereus found
reheated rice
costridiium perfringens found
reheated meat dishes or cooked meats
otheres causes of bacteria gastroenteritis
campylobacter, Ecoli, salmonella, shigella
what can Ecoli 0157 cause
haemolytic uraemic syndrome
viral causes of gastroenteritis
rotavirus, norovirus, adenoviruses
parasitic causes of gastroenteritis
cryptosporidium, entamoeba histolytica, giardia intestinalis, schistosoma
what gives a birds beak appearance
achalasia
how to diagnose achalasia
barium swallow
treatment of achalasia
hellers cardiomyotomy or balloon dilation
treatment of oesophageal varices
resuscitation, IV terlipressin, banding, sengstaken blakermore tube
prophylaxis of oesophageal varices
Beta blockers, EGD and banding, TIPSS
cobblestone mucosa
crohns
recurrent oral stomatitis
crohns
deep fissuring ulceration of mucosa
crohns
treatments of crohns
steriods, liquid diet, immunosupressants, surgery
Barretts oesophagus/ pre cancer
replacement of normal stratified squamous epithelium by simple columnar epithelium with goblet cells
murphys sign
asking the patient to take in and hold a deep breath while palpating the right subcostal area if the pain occurs on inspiration when the gall bladder comes in contact with the examiner’s hand then the Murphys sign is positive
what does murphys sign indicate
acute cholecystitis