Hepatobiliary/Pancreatic Flashcards
Do the trasaminases peak before or after the onset of acute hepatitis?
before
What is almost the only way to observe a mixed hyperbilirubinemia?
viral hepatitis
What type of drug can cause jaundice?
OCPs
Other than LDH, what enzyme can increase in the blood during intravascular hemolysis?
AST
Other than an obstruction, what else could elevate GGT?
induction of cytochrome enzymes
Which immunoglobulin is increased during Primary Biliary Cirrhosis?
IgM
What auto-antibody is present during Primary Biliary Cirrhosis?
anti-mitochondrial
Which two auto-antibodies are present during Autoimmune Hepatitis?
anti-nuclear
anti-smooth muscle
Is HAV spread by the blood?
NO
Does HAV produce a carrier state?
no
Is HAV an RNA or DNA virus?
RNA
Is HBV an RNA or DNA virus?
DNA
Is HBV carried by the blood?
yes
Which hepatitis virus is known to produce Immune complex disease?
HBV
Is HCV an RNA or DNA virus?
RNA
Which specific kidney pathology does HCV cause?
Type I MPGN
What two drugs are used to treat HBV?
Lamivudine
entecavir
What two drugs are used to treat HCV?
ribavarin
Telaprevir
Is HDV an RNA or DNA virus?
RNA
Is HEV an RNA or DNA virus?
RNA
Which specific part of HBV does HDV require to replicate?
HBsAg
What causes fulminant hepatitis in pregnant women?
HBV and HDV superinfection
What are the two hepatitis viruses not carried by the blood?
HAV
HEV
What is the first marker for HBV infection?
appearance of HBsAg
How does the presence of HBsAg define chronic hepatitis?
longer than 6 months = chronic
What are the two markers for Hepatitis B infectivity?
HBeAG and HBV-DNA
Do HBeAG and HBV-DNA occur before or after HBsAg?
after
Do HBeAG and HBV-DNA disappear before or after HBsAg?
before
What is the marker for acute immune response against HBV?
anti-HBc IgM
Is anti-HBc IgM protective?
no
What are the only two markers of HBV infection during the window period?
IgM core
IgG core
What is the marker for HBV protection?
anti-HBs
What is the gold standard for detecting HCV?
HCV RNA
What is the hepatitis virus where IgG is not protective?
HDV
Mixed hyperbilirubinemia is indicative of what disease?
hepatitis
Which haplotypes are associated with Autoimmune Hepatitis?
HLA DR3 and DR4
Autoimmune hepatitis is associated with what two other autoimmune diseases?
Hashimoto and Graves
Other than the liver diseases, what virus can cause neonatal hepatitis?
CMV
What are the three symptoms of Reye Syndrome?
Encephalopathy
Microvascular Fatty change
increased transaminases
What two metabolic processes are mos likely to happen during Reye Syndrome?
urea cycle
β-oxidation
What defines Microvascular Fatty steatosis?
no displacement of nucleus
What is the metabolic abnormality present in Reye Syndrome?
hypoglycemia
What drug is used to treat Reye Syndrome?
Mannitol
What zone of the liver is affected during Pre-eclampsia?
zone 1
What is HELLP Syndrome?
Hemoltic anemia
Elevated liver enzymes
Low platelets
What is Pelios hepatis?
sinusodial dilation do to blood
What are the two causes of Pelios Hepatis?
B. henselae and anabolic steroids
What damages the hepatocyte during Alcoholic Hepatitis?
acetylaldehyde
What invades the cell during alcoholic hepatitis?
Neutrophils
Which is more elevated during Alcoholic Hepatitis, AST or GGT?
AST
Where is thorium dioxide found?
radiographic contrast
What molecule causes pruritis?
bile salt
What type of amino acids are increased during liver cirrhosis?
aromatic
Do loops and thiazides produce a metabolic acidosis or alkalosis?
alkalosis
Liver failure can produce an excess of what hormone?
aldosterone
What is the difference between serum albumin and ascites albumin during liver ascites or peritoneal ascites?
liver = > 1.1 g/dL
peritoneal =
What happens to the kidney during hepatorenal syndrome?
intense vasoconstriction
What type of drug is used to treat HRS?
vasopressors
Why does liver failure induced hyperestrogenism produce impotence?
increased synthesis of sex hormone binding protein binds free testosterone
What gets destroyed during Primary Biliary Cirrhosis? Where?
bile ducts
portal triads
What disease other than Wilsons disease can produce copper accumulation in the cornea?
Primary Biliary Cirrhosis
What are the two treatments for Primary Biliary Cirrhosis?
Ursodeoxycholic acid
Budesonide
Why does the skin get dark during hemochromatosis?
iron activates melanin
Transferrin saturation over what value requires investigation for hemochromatosis?
> 45%
Destruction of what gland can occur during hemochromatosis? Which two values would go down?
anterior pituitary
LH and FSH
What is defective during Wilson disease?
defective transport of copper into bile
What protein carries copper in the absence of ceruloplasmin?
albumin
Where in the cornea does copper deposit during Wilson disease?
Descemet membrane
What other disease can produce copper in the cornea?
Primary Biliary Cirrhosis
What two specific structures of the brain does copper accumulate?
putamen
subthalamic nucleus
What type of movement does deposition of copper in the subthalamic nucleus produce?
hemiballismus
What specific kidney disease does excess copper produce?
fanconi syndrome
What type of emphysema does α1 anti-trypsin deficiency produce?
panacinar
What is the most common cause of cirrhosis in children?
α1 anti-trypsin deficiency
What does liver cirrhosis do to fasting glucose levels?
fasting hypoglycemia
What does liver failure do to breathing?
chronic pulmonary alkalosis
What type of blood pH abnormality do patients with liver failure clasically produce?
lactic acidosis
Do liver failure pt’s present with hypernatremia or hyponatremia?
hyponatremia
poor CO leads to
Do liver failure pt’s present with hyperkalemia or hypokalemia? Why?
hypokalemia
excess aldosterone secretion do to poor kidney perfusion
Hypoalbuminemia will produce what electrolyte disturbance?
hypocalcemia
Which hydroxylation reaction of vitamin D takes place in the liver?
25
What are the three causes of a liver adenoma?
OCPs
anabolic steroids
Von Gierke glycogenolysis
What amino acid disease can cause HCC?
tyrosinemia
Where can bile be found during HCC?
neoplastic cells
What three hormones can HCC secrete?
insulin-like factor
EPO
PTHrp
What type of cyst is the most common to find in children under the age of 10 in their liver?
Choledochal
Which liver cancer does Clonorchis sinesis cause?
Cholangiocarcinoma
What are the three mechanisms by which estrogen may contribute to formation of cholesterol stones?
increase HDL synthesis
upregulates LDL receptor
activates HMG-CoA reductase
Which virus can cause cholecystitis?
CMV
What is used for pain for a gall stone?
Meperidine
Why is morphine not used to treat a gall stone?
contracts sphincter of Oddi
What patient population most often develops gall bladder adenocarcinoma?
elderly women
What activates the pancreatic enzymes during a bile duct obstruction?
bile
Why can Acute Pancreatitis cause ARDS?
circulating pancreatic phosphoLipase can cleave surfactant
Why can acute pancreatitis cause DIC?
activate of prothrombin by trypsin
Why can acute pancreatitis cause tetany?
consumption of calcium during peripancreatic fet necrosis
Isolated increases in amylase are indicative of what?
pancreatic pseudocyst
What is secreted in the urine, amylase or liapse?
lipase
Which enzyme is increased during pancreatitis?
trypsin
What is the most sensitive marker for Acute Pancreatitis?
Serum Immunoreactive Trypsin
Does Serum Immunoreactive Trypsin increase or decrease during Acute Pancreatitis?
increase
Does Serum Immunoreactive Trypsin increase or decrease during Chronic Pancreatitis?
decrease
What does Bentiromide get converted into?
PABA
Where is PABA found?
urine
What is PABA in the urine indicative of?
Chronic Pancreatitis
Which gene is associated with Pancreatic Adenocarcinoma?
KRAF
Which two tumor suppressors are often mutated during Pancreatic Adenocarcinoma?
p16 and p53
What is the gold standard marker for pancreatic cancer?
CA 19-9
Which two cancers can produce a Sister Mary Joseph Nodule?
gastric and pancreatic