GI cards Flashcards
Drugs that cause cholestatic pic?
hepatocellular pic?
Drugs causing cirrhosis?
phenothiazides (prochloperazide, chlorpromazine), anabolic steroids/ abx (erythromycin, co-amox, fluclox), sulfonylureas, fibrates, OCP, rare -nifedipine
hepatocellular (phenytoin, RIPE, amiodarone, methyldopa, nitrofurantoin, valporate, statins,
MAMA: methyl dops, methotrexate, amiodarone
Alcoholic vs fatty LD AST/ALT ratio?
alcoholic - AST:ALT >2
NAFLD: ALT :AST >2
salt before lime in tquila
true love and witt’s criteria?
admission crtieria for UC flare. severe: Hb <105, wcc 15+, CRP 45+/ stools 6+ admit for IV
young hepatitis, psych symptoms?
other associated factors -polyuria/ dipsia?
DX?
wilson’s disease tx penicillamine
fanconi’s syndrome - aTN
ceruloplasmin <200
raised 24 hr urine copper
gall bladder palpable painless jaundice?/ new diabetes. dx?
other RF?
tx?
do HRCT abdo, panc cancer
other signs: migratory thrombophlebitis, double duct, fatty stools, trousseau
rf: HNPCC, MEN,
pancreatoduodenctomy/ whipples. only <20% suitable for surgery
C diff tX?
dx of c-diff?
Ix?
Tx if recurring?
risks making life threatening?
PO van 10 days (1st time), 2nd: fidaxomicin, then PO vanc+ v/po metronidazole
cX: PPI, abx
CDT stool test
if recurring - PO fidaxomicin
2+ epsodes, consdier stool transplant
life threatening: toxic megacolon, hypotension, ileus
Oesophageal cancer - which is more common in developing world? where is is?
RF of each?
appearance on barium swallow
risk of this?
SCC (upper 2/3), AF: plummer vinson syndrome, achalasia
A/C - in uk/US (AF GORD, barrets, lower 1/3)
barium - apple core appearance
DX upper gi endoscopy
ris: anastomotic leak, causing mediastinitis
spontaneous bacterial peritonitis when to give proph abx?
which abx?
how do we confirm dx
RF?
when protein ascites fluid protein <15/ 9+ on child pugh score / hepato renal syndrome
give ciproflox/ norflox ntl ascites resolved
DX: paracentesis neutrophils 250+
DM, cirrhosis, skin pigmentation?
haemochromatosis. risk of HCC. most common recessive disorder. need TS/ ferritin. maintain ts <50%. dx women 55+, men 50+
HCC RF?
Hep B (worldwide), Hep C (europe), Alpha 1 antitrypsin - young, pulmonary sx, DM, male, OCP
deranged LFTs with wheeze, cough, SOB? inheritence pattern?
how to smokers present?
alpha 1 antitrypsin
deficiency causes neutrophil enzymes to destroy alveoli, ADom, smokers have sx 10 yrs earlier than non smokers
ascites which Ix shows the cause of it?
cx leading to portal hypertension
other causes?
tx?
abx to reduce the risk of spontaneous bacterial peritonitis? when would you give this?
SAAG 11+ livercirrhosis/ alchol
congestive : heart failure, constrictive pericarditis
budd chiari, portal vein thrombosis, veno occlusive disease, myxoedema
SAAG <15 - proph ciprofloxacic
SAAG11+ - nephrotic syndrome causing hypoalbuminaemia/ pancreatitis/ obstruction
tx: spironolactone, drain
risks: peritonits, dilutional hyponatraemia, hepato renal syndrome
drugs causing hepatocellular pic?
A moon is very RIPE on fen’s roof at night
paracetamol
sodium valproate, phenytoin
MAOIs
halothane
anti-tuberculosis: isoniazid, rifampicin, pyrazinamide
statins
alcohol
amiodarone
methyldopa
nitrofurantoin
suspected variceal bleed tx before?
terlipressin and abx
SE of PPI?
hyponatraemia, hypomagnasaemia
osteoporosis → increased risk of fractures
microscopic colitis
increased risk of C. difficile infections
c urea breath test should be clear of abx and ppi for how long?
no abx for 4 weeks and no ppi for 2 weeks
Features of crohns?
fistula ix and tx?
most common surgery
tx - induction/ remission?
risks of crohns
crow’s have less blood (non blood diarrhoea), skip lesions (skip through street), goblet cells, all layers, episcleritis more common - terminal ileum, bowel obstruction/ fistula
N – No blood or mucus
E – Entire GI
S – “Skip lesions” on endoscopy
T – Terminal ileum- will need ileocecal resection
S – Smoking is a risk factor (don’t set the nest on fire)
perianal disease - fistula ned MRI pelvis. tx with draining seton
induce: C/S first line
2nd - 5ASA (not as effective)
remission: azathioprine/ mecaptopurine/ methotrexate2nd line
risks: small bowel cancer, osteoporosis
UC features?
tx?
features of severe? tx? wat criteria?
remission?
bloody diarrhoea (sir has more blood), continuous lesions (down the street), likely to make a mark/ scar (PSC), and get colorectal cancer, more common to get uveitis,
C – Continuous inflammation
L – Limited to the colon and rectum (most common rectum)
O – Only superficial mucosa affected
S – Smoking may be protective
E – Excrete blood and mucus
U – Use amino salicylates
P – Primary sclerosing cholangitis
tx: topical aminoacylate then to oral if not by 4 weeks amino. then CS.
severe: 6+ stools, systemic upset. hb <105, IV methylprednisolone (truelve and witts)
remission: topical ASA OD ei+- po ASA
azathioprine: for 2+ relapses a yr
features common to both UC and crohns (IBD)
pyoderma gangrenosum, arthritis, erythema nodosum, arthritis
surgical options for UC?
ileostomy/ J pouch (ileoanal anastomosis)
What is plummer-vinson
iron deficiency anaemia, atrophic glossitis and oesophageal webs or strictures. AF - SCC
painless intermittent disphagia. indian subcontinent
bird beak’s sign, dysphagia with both solids and liquids from day 1?
achalasia: narrowing of the distal oesophagus
why do endomesial antibody in coelaic testing?
IGA antibody needed to exclude IGA deficiency or else a false negative result could arise
Acute liver disease features?
jaundice, raised PT, low albumin, renal failure
CX: Hep A/B, alcohol, paracetmaol (most common), acute fatty liver of pregnancy