liver1 flashcards
What are 3 digestive functions of the liver?
bile salt secretion and help make bile, process & store of proteins, fat, carbs,vitamins and minerals
Metabolism (break down) of glucocorticoids, mineralcorticoids, and sex hormones & regulation of metabolism of fats, proteins, and carbs are an example of which fxn of the liver?
Endocrine
True or False, if aldosterone is out of balance, secondary characteristics will not be affected
FALSE, voices may changes, abnormal chin hair growth, testicular atrophy, loss of body, and growth of breast tissue
Hematologic fxn of liver include: synthesis of _____ from _____ products, temporary blood storage of ____ ml, _____poiesis, synthesis of blood ____ factors.
synthesis of billirubin from blood products, temporary blood storage of 400ml, hematopoiesis, and synthesis of blood cloting factors
True or False if you are bleeding, the liver can release blood contents into the blood stream as sort of a back up
TRUE
Excretion function of liver include:
cholesterol in bile, bile pigment, urea synthesis, and detoxification of drugs, toxins, and chemicals
What are kuffer cells?
fixed tissue macrophages
How many hepatitis viruses are there?
- A -G
How many hepatotoxic drugs are there?
1000
True or False, if the drug is metabolized or excreted by the liver, it is not hepatoxic
FALSE, voices may changes, abnormal chin hair growth, testicular atroph, loss of body, and growth of breast tissue
What does fulminant mean?
full-blown, complete liver failure in a short amount of time
What infections can cause hepatitis?
Tb,malaria, mumps, measles, CMV (cytomegalvirus)
True or False, a primary infection of Hepatitis is caused by 1 of 5 viruses (A-E), blood-borne transmission, and water-digestive
TRUE
Who has a high risk of developing hepatitis docs, nurses, resp. therapy
nurses
What is the incubation to seroconversion for Hep C?
6-7 weeks to 6 months
True or False, people with chronic HCV are typically asymptomatic or have mild clinical illness
FALSE, persons with acute infection typically are either asymptomatic or have mild clinical illness
How do you get hepatitis?
illegal injection drug use, blood transfusion or solid organ transplant before 1992, receipt of clotting factor conc. Produced before 1987, and long term hemodialysis
What is the difference between having a pos HCV antibody test and a positive HCV RNA test?
pos HCV antibody test = person was infected at some point in time, if pos HCV RNA test = person has a current infection
What are the 2 categories for drugs to treat chronic Hepatitis?
Antiviral drugs and Immunomodulators
What are 2 types of Immunodulators?
Interferon and Ribavirin
Fatigue, headache, muscle and joint aches, nausea, loss of appetite, weight loss, fever, depression, thyroid problems, hair loss, skin rash, low levels of RBC, WBC, & platelets are all side effects of which drugs?
Pos HCV antibody test = person was infected at some point in time, if pos HCV RNA test = person has a current infection
Cirrhosis _________ structure and replaces with __________ and fatty _____
Cirrhosis disrupts structure and replaces with collagen and fatty infiltration
What are the 4 types of Cirrhosis?
Alcoholic (Laennec’s), Biliary, Post necrotic, and metabolic
Ischemia from inflammation of the liver for too long leads to necrosis. These patients did not get the blood supply they needed to soon enough. This describes which type of Cirrhosis?
Post necrotic
True or False, if the liver is shrunken in since it is caused by something inflammatory, and if the liver is enlarged and tender, it is failing
False. Enlarged & tender = inflammatory. Shrunken = failing
True or False, problems with Cirrhosis is electrolyte and fluid based
TRUE
What are proteins useful for?
healing/drugs, oncotic pressure, and tissue repair
Most hepatic disorders cause either: __________ changes or alterations in _______ blood flow
Hepatocellular changes or alteration in portal blood flow
What are the 2 pathological mechanisms related to Cirrhosis?
Inflammation and obstruction of ducts
What are the 2 components of inflammation in cirrhosis?
leads to malabsorption & maldigestion) and edema (hepatomegaly) and increase permeability
Obstruction of ducts can lead to what?
gallstones and tumors
Portal HTN is a pathological mechanism of what disease?
cirrhosis
What are 4 causes of portal HTN?
thrombi, inflammation, fibrosis (scarring), cardiac (RVF)
What happens when the portal blood is not able to move to the liver?
back flow pressure, forces collateral veins to open and bypass, which creates increase in splenic pressure