Gastroenterology Flashcards
principles of managing ascites
- diet: restrict ETOH, fluids, daily weights
- diuretics: spironolactone
- prophylaxis for SBP: ciprofloxacin and propanolol
- refractory disease: TIPPS/transplant
IBD staging aspects
Truelove and Witts
HR
Temp
Bowel Movements
PR bleeding
Hb
ESR
inflammation in Chron’s vs UC
Chrons: skip lesiosn, rose thorn ulcers, cobblestoning, narrow ileum stricture
UC: lead pipe, pseudo-polyps, thumb-printing
Alvarado score
signs: RLQ tenderness, fever, rebound tenderness
symptoms: anorexia, N/V, pain migration to RLQ
lab: leucocytosis , left shift
Alvarado score
signs: RLQ tenderness, fever, rebound tenderness
symptoms: anorexia, N/V, pain migration to RLQ
lab: leucocytosis , left shift
Glasgow score
PANCREAS
PaO2 < 8
Age > 55
Neutrophils > 15
Calcium < 2
Renal urea > 16
Enzymes (LDH >600, AST/ALT > 200)
Albumin < 32
Sugar > 10
early complications of acute pancreatitis
haemorrhage
SIRS/ARDS
hyperglycaemia
hypocalcaemia
Mackler’s triad
Boerhaave’s syndrome
- chest pain
- vomiting
- subcutaenous emphysema
causes of ascites
portal HTN
constrictive pericarditis
ovarian malignancy
grades of hepatic encephalopathy
- irritability
- confusion
- incoherent
- coma
osmotic diarrhoea causes
laxatives, malabsorption
may be relieved by gasting
secretory diarrhoea causes
enterotoxins, systemic (hormones, neuroendoocrine)
not relieved by fasting
inflammatory diarrhoea causes
UC, Chrons
abnormal motility causes of diarrhoea
hyperthyroidism
autonomic neuropathy
stimulant laxatives
IBS
appropriate investigations in IBS
FBC, CRP, coeliac disease Abs
Chron’s inflammation
transmural
non caseating granuloma
fissures and fistulas
causes of colitis
infection (campylobacter, shigella, C diff, CMV)
radiation
medications
ischaemic (acute, chronic)
causes of sub total villous atrophy
coeliac
infectious enteritis
giardia
Whipple’s
lactose intolerance
ALT rise
liver dysfunction
acute phase reactant
Hep B antigens and what they mean?
HBsAg: surface/viral envelope protein
HBeAg: pre core protein = marker for acute replication
HBcAg: core protein = role in replication
Hep B treatment
entecavir
tenofavir
lamivudine
interferon
PBC pathological changes
progressive destruction of small intrahepatic bile ducts
PSC pathological changes
inflammation and scarring of bile ducts
calculating SAAG
serum albumin - albumin level of ascitic fluid
causes of SAAG > 1.1 mg/dL
cirrhosis
alcoholic hepatitis
cardiac asicitis
portal vein thrombosis
causes of SAAG < 1.1. mg/dL
peritoneal carcinomatosis
bowel obstruction
nephrotic syndrome
causes of hepatomegaly
ALD
NAFLF
Cancer (mets, hepatocellular Ca)
viral hepatitis
CCF
causes of splenomegaly
haemotological (myelofibrosis, CML)
infection (TB, malaria)
portal HTN
infiltrative (sarcoidosis)
AI (SLE, Felty’s)
causes of large kidney
PCKD
cyst
renal Ca
infiltrative
investigations in IBD
bloods (FBC, U&Es, CRP, LFTs, pANCA)
Stool (culture, calprotectin)
Scope (colonoscopy, endoscopy)
investigations in IBD - acute
CT AP
Chron’s acute nutritional management to induce remission
replace diet with whole protein molecular diet (excessively liquid) for 6-8 weeks
what to check if starting azathioprine/mercatopurine?
check TPMT levels
hemorrhoid’s main investigation and finding
do DRE
most commonly at 3,7,11 o clock
coeliac genetics
DQ2, DQ8
diagnosing coeliac
anti-TTG is most sensitive
jejunal/duodenal biospy
acute cholecystitis complications
chronic diarrhoea
vitamin malabsorption (A, D, E, K)
Jaundice
antibodies if the different types of AI hepatitis and who it affects
T1: ANA, AMSA (adults, children)
T2: anti-LKM-1,2,3 (children)
T3: anti-soluble-liver antigen (middle-aged adults)
CLD S/S
palmar erythema
Dupuytren’s
Clubbing
Gynaecomastia
Axillary hair loss
Spider naevi
Enhanced Liver Panel aspects
hyaluronic acid
procollagen III
tissue inhibitor of metalloproteinase 1
what does fibroscan measure?
liver stiffness measurement
late complications of pancreatitis
peri-pancreatic fluid collection
pseudocysts
abscess
pancreatic necrosis
investigations in chronic pancreatitis
USS
contrast enhanced CT
HR-CT finding in Pancreatic Ca
double duct sign
= simultaneous dilatation of CBD and pancreatic duct