Unit2: Ch 38- Disorders of Hepatobiliary and Pancreas Function (Porth's 5th Ed) Flashcards
When explaining the role of liver Kupffer cells to a group of nursing students, which of
the following statements about the function of these cells is most accurate?
A) The primary function of Kupffer cells is to secrete bile.
B) These cells are the functional unit of the liver and are responsible for all liver
secretions.
C) The cells are capable of removing and phagocytizing old and defective blood
cells.
D) The role of the Kupffer cells is to provide at least 50% of cardiac output each
minute to each lobular of the liver.
Ans: C
Feedback:
Kupffer cells are reticuloendothelial cells that are capable of removing and
phagocytizing old and defective blood cells, bacteria, and other foreign material from
the portal blood as it flows through the sinusoid. This phagocytic action removes enteric
bacilli and other harmful substances that filter into the blood from the intestine. Small
tubular channels in the liver secrete bile. The functional unit of the liver is lobule.
Approximately 25% of blood per minute enters the liver through the hepatic artery.
A 51-year-old male has been diagnosed with alcohol-induced liver disease. He admits to
the nurse providing his care that, “I know what the lungs do, and I know what the heart
does, but honestly I have no idea what the liver does in the body.” Which of the
following statements would best underlie the explanation that the nurse provides?
A) The liver is responsible for the absorption of most dietary nutrients as well as the
production of growth hormones.
B) The liver contributes to the metabolism of ingested food and provides the fluids
that the GI tract requires.
C) The liver metabolizes most components of food and also cleans the blood of
bacteria and drugs.
D) The liver maintains a balanced level of electrolytes and pH in the body and stores
glucose, minerals, and vitamins.
Ans: C
Feedback:
The liver metabolizes protein, carbohydrate, and fat. As well, it metabolizes drugs and
removes bacteria by Kupffer cells. Absorption of nutrients takes place in the intestines,
and the liver does not produce the bulk of fluids secreted in the GI tract. The liver does
not have a primary role in the maintenance of acid–base or electrolyte balance.
A patient being seen in the clinic has just received his routine lab results. The patient
has been told that his cholesterol level is extremely elevated. The physician plans to
give the patient a prescription for medication to help control this condition. Which of
the following medications should the nurse prepare to educate the patient on?
A) Atorvastatin (Lipitor)
B) Abilify (aripiprazole)
C) Pancrecarb (Pancrelipase)
D) Pancrelipase (Ultrase)
Ans: A
Feedback:
The HMG-CoA reductase inhibitors or statins are used to treat high cholesterol levels by
inhibiting this step in cholesterol synthesis. Abilify is for schizophrenia; Pancrecarb and
Pancrelipase are pancreatic enzymes used for pancreatitis.
A 48-year-old woman has been diagnosed with extrahepatic cholestasis following a
thorough history, ultrasound, and blood work. Which of the following symptoms most
likely caused her to seek medical treatment, and what consequence to her health
problem would the medical team anticipate?
A) Complaints of lower flank pain with consequences of impaired fat metabolism
B) Anorexia with consequences of impaired drug metabolism and blood filtration
C) Skin xanthomas (focal accumulations of cholesterol) with consequences of
increased risk of bleeding due to deficient clotting factors
D) Pruritus with with consequence of deficient levels of fat-soluble vitamins
Ans: D
Feedback:
Pruritus is the most common symptom of cholestasis, and deficiencies in fat-soluble
vitamins such as A, D, and K are frequent. Flank pain is not a noted complaint, and bile
does not contribute to drug metabolism, blood filtration, or clotting factor production.
A male infant who is 48 hours postpartum is undergoing phototherapy for the treatment
of jaundice and accompanying high levels of bilirubin. Place the following components
of the production of bilirubin in the correct chronological order. Use all the options.
A) Conjugated bilirubin
B) Urobilinogen
C) Red blood cells
D) Biliverdin
E) Free bilirubin
Ans: C, D, E, A, B
Feedback:
Hemoglobin from the red blood cell is broken down to form biliverdin, which is rapidly
converted to free bilirubin. Inside the hepatocytes, free bilirubin is converted to
conjugated bilirubin. Conjugated bilirubin is secreted as a constituent of bile, and in this
form, it passes through the bile ducts into the small intestine. In the intestine,
approximately one half of the bilirubin is converted into a highly soluble substance
called urobilinogen by the intestinal flora.
A patient has just been admitted to a nursing unit with the diagnosis of obstructive
jaundice. Which of the following assessment findings would the nurse expect to see in
this patient? Select all that apply.
A) Clay-colored stools
B) Dark urine
C) Elevated conjugated bilirubin levels
D) Decreased serum alkaline phosphatase levels
E) Severe itching
Ans: A, B, C, E
Feedback:
Obstructive jaundice occurs when bile flow is obstructed between the liver and the
intestine. Among the causes are strictures of the bile duct, gallstones, and tumors of the
bile duct or the pancreas. Conjugated bilirubin levels usually are elevated; the stools are
clay colored; the urine is dark; the levels of serum alkaline phosphatase are markedly
elevated; and the aminotransferase levels are slightly increased. The accumulation of
bile acids in the blood leads to the development of pruritus (itching).
A 29-year-old female has been admitted to the emergency department following a
suicide attempt by overdose of acetaminophen. What changes in the client’s liver and
diagnostic results would the care team most likely anticipate?
A) Hepatocellular necrosis evidenced by increased ALT and AST levels
B) Allergic inflammation accompanied by an increase in serum IgE and basophils
C) Cholestatic reaction with increased bilirubin count
D) Rapid onset of hepatitis and increased GGT, ALT, and bilirubin
Ans: A
Feedback:
Acetaminophen is commonly implicated in cases of direct hepatotoxicity, a situation
that is characterized by hepatocellular necrosis and increased ALT and AST levels. An
allergic-type reaction is associated with idiosyncratic drug reactions, and cholestatic
reactions and development of hepatitis are not noted to be associated with
acetaminophen.
Four weeks after returning from a tropical vacation, a 40-year-old man has presented to
the emergency department with malaise, nausea, and “yellow eyes.” Serology has
confirmed a diagnosis of hepatitis A (HAV), to the shock of the client. What teaching is
most appropriate for this client?
A) “You can expect these symptoms to disappear after about 2 months, but you’ll be
a carrier of the disease indefinitely.”
B) “A vaccine before your trip would have prevented this, but be assured your body
will rid itself of the virus in time.
C) “You likely came in contact with blood or body fluids at some point, and you’ll
have to ensure no one is subsequently exposed to your own blood or body fluids.”
D) “You likely got this by way of what we call the ‘fecal–oral’ route; you will have
chronic hepatitis now, but the symptoms can be controlled with medication.”
Ans: B
Feedback:
HAV is normally self-limiting and does not result in chronic hepatitis or carrier status.
A vaccine is available, and the fecal–oral route of transmission, rather than contact with
blood and body fluids, is typical.
A 53-year-old woman with a history of chronic alcohol abuse but without visible
jaundice comes to the clinic complaining of nausea and weakness. She admits to taking
acetaminophen for persistent headaches but denies exceeding the recommended daily
dose; she has not taken any other medications. She is suspected of having
acetaminophen toxicity. Which of the following diagnostic test findings would implicate
a different cause of her symptoms?
A) Normal serum acetaminophen level
B) Elevated serum HBsAg level
C) Evidence of steatosis on liver biopsy tissue sample
D) Hypoglycemia
Ans: B
Feedback:
The presence of HBsAg would suggest that this woman is in the prodromal phase of
hepatitis B infection. A normal serum acetaminophen level does not preclude toxicity if
the drug is taken over a period of time. Steatosis is fatty infiltration of the liver.
Steatosis is often but not exclusively an early histological feature of alcoholic liver
disease (therefore, with chronic alcohol abuse, the nurse should expect the patient may
have steatosis). Drinking heavily without eating can block your liver from releasing
stored glucose into your bloodstream, causing hypoglycemia.
A male patient comes to the clinic asking to speak to a health care provider privately.
He reveals that he had shared a needle/syringe with a prostitute (shooting up cocaine)
and then had unprotected sex. Upon questioning, it was revealed that the patient had not
had any immunization for hepatitis B. Which of the following medications would the
nurse anticipate administering today to this patient?
A) Tenofovir disoproxil fumarate plus emtricitabine
B) Hepatitis B immunoglobulin (HBIG)
C) Hepatitis C immunoglobulin (HCIG)
D) Hepatitis A vaccine
Ans: B
Feedback:
HBIG is used as an adjunct to hepatitis B vaccine for postexposure immunoprophylaxis
to prevent HBV infections in high-risk populations. Tenofovir disoproxil fumarate plus
emtricitabine is for HIV preexposure coverage. There is no hepatitis C vaccine available
on the market yet. Hepatitis A vaccine is for HAV, which is usually spread from fecal–
oral routes.
A 40-year-old man who uses heroin intravenously was diagnosed with hepatitis C
(HCV) 1 year ago and is now considered to have chronic viral hepatitis. Which of the
following statements by the client to his care provider would warrant correction?
A) “I know the medications to treat this aren’t fantastic, but at least there are some
options for controlling the virus.”
B) “It’s at least a bit reassuring that my liver isn’t undergoing damage when I’m not
experiencing symptoms.”
C) “Even though I’m sick, at least I won’t feel sick most of the time.”
D) “I’m not looking forward to all the side effects of the drug treatments for my
HCV, but I hope I don’t end up needing a liver transplant.”
Ans: B
Feedback:
Liver damage persists both during symptomatic and asymptomatic periods of acute viral
hepatitis. Medications do exist for treatment of the disease, and asymptomatic periods
are more common than symptomatic episodes. Side effects of drug treatment are
common, and transplant is a potential end-stage treatment option.
A 24-year-old woman undergoing a premarital screening test is found to have elevated
levels of AST, ALT, and IgG, but no antibody-specific markers for viral hepatitis. A
liver biopsy reveals inflammation and cellular damage. Which of the following
treatments is most likely to be effective for her?
A) Lamivudine
B) Peginterferon and ribavirin
C) Interferon alfa-2b
D) Corticosteroids and immunosuppressant drugs
Ans: D
Feedback:
This woman’s hepatitis is probably caused by an autoimmune disorder rather than a
virus. Lamivudine, peginterferon/ribavirin, and interferon alfa-2b are all antiviral
agents. Autoimmune hepatitis is a chronic, usually progressive, inflammatory disease of
the liver. Corticosteroids are the mainstay of treatment and have been shown to produce
remission. Azathioprine, an immunosuppressant medication, is sometimes used along
with prednisone. Using both medications may allow you to take a smaller dose of
prednisone, reducing its side effects. Most people with this disease require long-term
maintenance treatment.
A 51-year-old male professional is in the habit of consuming six to eight rum and cokes
each evening after work. He assures the nurse practitioner who is performing his regular
physical exam that his drinking is under control and does not have negative implications
for his work or family life. How could the nurse best respond to the client’s statement?
A) “You are more than likely inflicting damage on your liver, but this damage would
cease as soon as you quit drinking.”
B) “That may be the case, but you are still creating a high risk of hepatitis A or B or
liver cancer.”
C) “In spite of that, the amount of alcohol you are drinking is likely to result first in
cirrhosis and, if you continue, in hepatitis or fatty liver changes.”
D) “When your body has to regularly break down that much alcohol, your blood and
the functional cells in your liver accumulate a lot of potentially damaging toxic
byproducts.”
Ans: D
Feedback:
The hepatic effects of alcohol use are related to the accumulation of toxic metabolites in
the hepatocytes and blood. Damage can continue even after an individual stops drinking.
Specific consequences do not usually include HAV, HBV, or liver cancer. Cirrhosis
represents the culmination, not the beginning, of negative hepatic effects.
For several years, a 39-year-old female has been averaging two to three bottles of wine
each night after her children go to sleep and has included several ounces of brandy in
recent years as well. Despite negative consequences to her career and the dissolution of
her marriage, her drinking has culminated in a diagnosis of cirrhosis. Which of the
following physical manifestations of the health problem would her care team anticipate?
Select all that apply.
A) Ascites
B) Anorexia
C) Fever
D) Bleeding tendencies
E) Epigastric pain
F) Obesity
Ans: A, B, D, E
Feedback:
Ascites, anorexia, bleeding tendencies due to neurological effects, and epigastric pain
are common accompaniments to cirrhosis. Ascites occurs when the amount of fluid in
the peritoneal cavity is increased and is a late-stage manifestation of cirrhosis and portal
hypertension. Epigastric pain is caused by liver enlargement or peritonitis. The
peritoneal fluid is seeded with bacteria from the blood or lymph or from passage of
bacteria through the bowel wall. Because factors V, VII, IX, and X, prothrombin, and
fibrinogen are synthesized by the liver, their decline in liver disease contributes to
bleeding tendencies. Fever and obesity would be less likely to exist, as the pathology is
not infectious in nature and malnutrition and impaired food metabolism are common.
A patient with pancreatic cancer is admitted for portal hypertension in which he is
symptomatic with ascites. Following paracentesis and removal of 7.5 L of ascitic fluid,
the nurse should anticipate that the physician will order which of the following
medications to assist in maintaining an effective circulating fluid volume?
A) Bumetanide (Bumex)
B) Furosemide (Lasix)
C) Albumin (human) 5%
D) Epogen (epoetin alfa)
Ans: C
Feedback:
Complications of portal hypertension include ascites, splenomegaly, and hepatic
encephalopathy. Following paracentesis, to remove ascitic fluid, a volume expander
such as albumin is usually administered to maintain the effective circulating volume.
Lasix and Bumex are diuretics that decrease circulating fluid volume. Epogen stimulates
red blood cell production and ultimately increases O2-carrying capacity.