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36 Cards in this Set
- Front
- Back
What is Cirrhosis?
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Cell necrosis occurs. Destroyed liver cells are replaced with scar tissue that does not regenerate. Normal architecture becomes nodular.
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What are the four types of Cirrhosis?
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Alcoholic (lannech's)
Postnecrotic (Viral hepatitis) Biliary Obstruction Cardiac cirrhosis |
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In cirrhosis is Albumin Increased or Decreased? What is the normal value for Albumin?
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Decreased, 4.0-5.5
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In cirrhosis several other labs are affected name some...
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Increased Bilirubin, Increased PT, Increased AST, Increased ALT, Increased Ammonia, Increased Na, Decreased K
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Compensated Early symptoms for Cirrhosis consist of what?
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Usually insidious: Abdominal pain, anorexia, dyspepsia, flatulence, N&V, change in vowel habits, enlarged liver & spleen, slight weight loss, fatigue
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Decompensated Symptoms (Late) for Cirrhosis include:
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Jaundice
Spider angiomas, palmar erythema Endocrine disturbances Heamtologic disorders Peripheral neuropathy Small, firm, nodule Liver |
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What are 3 possible complications of cirrhosis?
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Portal Hypertension
Peripheral edema & ascites Hepatic encephalopathy |
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What are 4 characteristics of portal hypertension?
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Increased venous pressure in portal circulation
Splenomegaly Esophageal varices Systemic hypertension |
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What are 3 normal functions of the spleen?
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Destroying old and defective RBCs
Stores lymphocytes (WBCs, immune response) Stores platelets (clotting) |
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Ascites is characterized by what?
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A fluid shift into the peritoneal space containing small amounts of protein (3rd space shifting)
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Why does ascites lead to hepatic encephalopathy?
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Circulating ammonia damages brain cells
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What kind of diet would be recommended for someone with ascites?
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High carbs
Low proteins (liver unable to process it -> encephalopathy) Low sodium |
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Why are diuretics used in the treatment of Ascites?
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Improve hypertension, fluid is no longer being pushed out of plasma
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Intervntions for Ascites include:
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Diet
Diuretics Adequate Rest Fluid removal: Paracentesis, peritoneovenous shunt |
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What are esophageal varices?
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Complexes of tortuous veins, enlarged and swollen as a result of portal hypertension
Located at the lower end of the esophagus Do not tolerate high pressure well -> distended & bleed easily |
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Interventions for Esophageal Varices include:
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Avoid alcohol, apirin, and irritating foods
If bleeding occurs, stabilize pt and manage the airway Endoscopic sclerotherapy or ligation Balloon tamponade |
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What health problem related to decompensated cirhosis is of most concern?
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Esophageal varices
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How does a balloon tamponade work?
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Provides pressure to bleeding site
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Sclerotherapy is described as...
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Material injected in to varices causing thromboses and obliterates the distended veins
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What is hepatic encephalopathy and when does it occur?
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Changes in neurological and mental function, ranging from lethargy to deep coma
Occurs when ammonia enters the systemic circulation without detoxification by the damaged liver |
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Intervention for hepatic encephalopathy...
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Protein restriction (0-40g/day)
Sterilization of GI tract with antibiotics (e.g. neomycin) lactulose (Cephulac) - traps ammonia in gut levodopa (anti-parkinsons) |
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What should the diet consist of for the pt with cirrhosis but without complications?
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High calories
High carbs Moderate to low fat Amount of protein varies with degree of liver damage |
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What interventions should be considered when treating a patient with cirrhosis, in order of priority?
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1. Rest
2. avoidance of alcohol and anticoagulants 3. Management of ascites 4. Prevention and management of esophageal variceal bleeding 5. Management of encephalopathy |
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What is fetor hepaticus?
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Musty, sweetish odor detected on the pt's breath from accumulation of undigested by-products
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Why is splenomegaly present in portal hypertension?
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Back pressure caused by portal hypertension leads to chronic passive congestion as a result of increased pressure in the splenic vein
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What causes esophageal varices as a result of portal hypertension?
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Increased blood flow through the portal system results in dilation and enlargement of the plexus veins of the esophagus and produces varices
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Explain caput medusae
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Collateral circulation involves the superficial veins of the abdominal wall leading to the development of dilated veins around the umbillicus
A compensatory mechanism |
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There are 2 causes of the late manifestations of cirrhosis. What are they?
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Hepatocellular failure: unable to store fat-soluble vitamins properly
Portal hypertension |
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What are the 7 diagnostic test used to diagnosis cirrhosis?
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Liver function tests
Liver biopsy Liver scan Liver ultrasound Esophagogastroduodenopscopy Prothrombin time Testing stool for occult blood |
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At what age is the highest incidence of cirrhosis?
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40-60
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Is cirrhosis more common in men or women?
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Men
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What are 2 drugs used in the treatment of Cirrhosis and when are they indicated?
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lactulose - hepatic encephalopathy
neomycin - hepatic encephalopathy |
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What is the action of neomycin?
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Decrease the number of ammonia-producing bacteria in the gut - Inhibits protein synthesis in bacteria at level of 30S ribosome.
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What should the nurse be aware of when caring for a pt on neomycin?
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Assess patient for infection (vital signs, wound appearance, sputum, urine, stool, WBC) at beginning of and throughout therapy. Hepatic Encephalopathy: Monitor neurologic status. Prior to administering oral medication, assess patient's ability to swallow.
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What is the action of lactulose?
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Lowers the pH of the colon, which inhibits the diffusion of ammonia from the colon into the blood, thereby reducing blood ammonia levels.
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What should the nurse be aware of when caring for a pt on lactulose?
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Decreased blood ammonia concentrations by 25-50%. May cause increased blood glucose levels in diabetic patients. Monitor serum electrolytes periodically when used chronically. May cause diarrhea with resulting hypokalemia and hypernatremia. When used in hepatic encephalopathy, adjust dose until patient averages 2-3 soft bowel movements per day. During initial therapy, 30-45 mL may be given hourly to induce rapid laxation.
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