Gastroenterology Flashcards
Most common cause of pancreatitis?
Gallstones
Causes of pancreatitis?
Gallstones
Ethanol (alcohol)
Trauma
Steroids
Mumps
Autoimmune disease (e.g. systemic lupus erythematosus, Sjogren’s syndrome)
Scorpion stings
Hypercalcaemia, hypertriglyceridemia, hypothermia
ERCP
Drugs (e.g. thiazides, azathioprine, sulphonamides)
How is Glasgow score of pancreatitis interpreted?
A score over 3 indicates severe, score 1 point for each of the following
PaO2 < 8kPa
Age > 55 years
Neutrophils > 15
Calcium < 2
Renal i.e. Urea > 16
Enzymes i.e. LDH > 600 or AST > 200
Albumin < 32
Sugar i.e. Glucose > 10
When should glasgow score for pancreatitis be calculated?
Within 48 hours of admission
Symptoms of pancreatitis?
Epigastric pain which radiates to the back
Nausea and vomiting
Diarrhoea
Signs of pancreatitis?
Abdominal tenderness
Peritonism
Tachycardia/ hypotension
Grey- Turners sign; bruising in flank
Cullens sign; bruising around umbilicus
Fox sign; bruising around inguinal ligament
Differentials for pancreatitis?
ACS
Perforated peptic ulcer
Ruptured abdominal aortic aneurysm
Bowel obstruction
Cholecystitis
Investigations to diagnose pancreatitis?
ABG; pO2
ECG
Pregnancy test
Capillary glucose
FBC, CRP, LFT, U+E, amylase, lipase, LDH, lipid profile
autoimmune markers
Coagulation
Abdominal USS
CXR, MRCP, CT
Management of pancreatitis?
Catheterise and monitor urine input and output
NG tube
Enteral nutrition
IV fluids
Anti-emetics
Antibiotics
Laparoscopic cholecystectomy
Complications of pancreatitis?
Pancreatic pseudocyst
Pancreatic necrosis
Peripancreatic fluid collections
Haemorrhage
Pancreatic fistulae
Acute respiratory distress syndrome
AKI
DIC
Sepsis
Multi-organ failure
Hypocalcaemia
Hyperglycaemia
What is porphyria?
Abnormalities in haem synthesis resulting in structural/ functional alterations in enzyme
Classified as acute or non-acute
Triggers for acute porphyria?
Antibiotics - Rifampicin, Isoniazid, Nitrofurantoin
Anaesthetic agents - Ketamine, Etomidate
Sulfonamides
Barbiturates
Antifungal agents
Symptoms of acute porphyria?
Abdominal pain
Nausea
Confusion
Hypertension
Seizures
Investigations to diagnose porphyria?
Urinary porphobilinogen; elevated
Urine appears red/ purple
Management of acute porphyria?
Supportive
Haem arginate
Risk factors for alcoholic liver disease?
Genetic predisposition
Concurrent liver disease
Nutritional status
High alcohol consumption
What does chronic alcohol consumption lead to?
Fatty liver
Alcoholic hepatitis
Cirrhosis
Signs of Alcoholic hepatitis?
Jaundice
Fever
Hepatomegaly
Nausea
Vomiting
Malaise
Signs of cirrhosis?
Jaundice
Ascites
Hepatic encephalopathy
Bleeding
Spider naeviae
Palmar erythema
Differentials for alcoholic liver disease?
Non alcoholic liver disease
Viral hepatitis
Haemochromatosis
Wilsons disease
Autoimmune hepatitis
Primary biliary cirrhosis
Bloods to diagnose liver disease?
FBC, LFT, Coagulation, serum albumin, viral serology, autoimmune markers, serum iron, ferritin, transferrin, ceruloplasmin
Ultrasound scan
CT/ MRI
FibroScan
Liver biopsy