Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
125 Cards in this Set
- Front
- Back
What is the largest internal organ?
|
Liver
|
|
Where is the liver in the body?
|
Right epigastric region
|
|
About ______ of the blood supply comes from the hepatic artery
|
one fourth
|
|
______ of the blood supply comes from the portal vein
|
three fourths
|
|
Where does the portal circulatory system bring blood from?
|
The stomach, intestines, spleen, and pancreas
|
|
Where does blood enter the liver?
|
portal vein
|
|
What are the seven major functions of the liver?
|
Carbohydrate metabolism
Fat metabolism Bile production Storage Protein metabolism Steriod metabolism Bile excretion |
|
What does the liver store?
|
Glucose in the form of glycogen
Vitamins (fat and water soluble) Fatty acids Minerals Amino Acids (Albumin and B-globulins) |
|
What is the Mononuclear phagocyte system?
|
Kupffer cells
- breakdown old WBCs, RBCs, bacteria, and other particles - breakdown of hemoglobin from old RBCs to bilirubin and biliverdin |
|
What usually happens when the liver metabolizes drugs?
|
Results in loss of activity
|
|
Total bilirubin normal limits
|
0.2- 1.2 mg/dL
|
|
Albuminm normal limits
|
3.5-5 g/dL
|
|
Globulin normal limits
|
2.0- 3.5 g/dL
|
|
Total protein normal limits
|
6.4- 8.3 g/dL
|
|
A/G ration normal limits
|
1.5:1- 2.5:1
|
|
Ammonia normal limits
|
15-45 mcg N/dL
|
|
AST normal limits
|
10-30 U/L
|
|
ALT normal limits
|
10-40 U/L
|
|
Serum cholesterol normal limits
|
<200 mg/dL
|
|
What is a liver biopsy used for?
|
Obtaining a specimen of liver tissue
|
|
What are the possible complications of a liver biopsy?
|
Pneumothorax
Peritonitis Hemorrhage |
|
What is cirrhosis?
|
A chronic progressive disease of the liver with extensive degeneration and destruction of liver cells.
|
|
What is the etiology of cirrhosis?
|
- long term liver disease
- excessive alcohol intake - primary biliary cirrhosis - primary sclerosing cholangitis |
|
What are the early S/S of cirrhosis?
|
-N/V
- Anorexia - Dyspepia - Flatulence - Diarrhea or constipation - Abdominal pain - Fever - Slight weight loss - Enlargement of liver and spleen |
|
What are the late S/S of cirrhosis?
|
- Jaundice
- Peripheral edema - Ascites - Skin lesions - Hematologic disorders - Endocrine disturbances - Peripheral neuropathies - Liver size decreased and nodular |
|
What is jaundice?
|
A yellowish discoloration of body tissue resulting from an alteration in normal bilirubin metabolism or flow of bile into the hepatic or biliary duct system.
|
|
What are the 3 kinds of jaundice?
|
- Hemolytic (increased breakdown of RBCs, producing an increase in the amt of unconjugated bilirubin in the blood)
- Hepatocellular (liver's inability to take up bilirubin from the blood or to conjugate or to excrete it) - Obstructive (due to the decrease or obstructed flow of bile through the liver or biliary duct system) |
|
What are two skin lesions seen in cirrhosis?
What are they due to? |
- Spider angiomas (small dilated blood vessels)
- Palmar erythema (red area on palms) Due to the increase in circulating estrogen as a result of the liver's inability to metabolize steroid hormones. |
|
What are some hematologic problems associated with cirrhosis?
|
- Thrombocytopenia (decreased platelets)
- Leukopenia (decreased WBCs) - Anemia - Coagulation disorders - Splenomegaly (increased spleen) |
|
What are some endocrine problems associated with cirrhosis?
|
- inactivation of adrenocortical hormones, estrogen, and testosterone
- Hyperaldosteronism - Men: gynecomastia, loss of axillary and pubic hair, testicular atrophy, impotence, loss of libio - Women: amenorrhea, vaginal bleeding |
|
What is peripheral neuropathy related to?
|
- dietary deficiency
- folic acid - cobalamin |
|
What are some complications of cirrhosis?
|
- Portal hypertension
- Esophageal and gastric varices - Peripheral edema (ankle and presacral) - Ascites - Hepatic encephalopathy (coma) - Hepatorenal syndrome |
|
Portal hypertension is from?
leads to? |
It is from the portal vein becoming engorged because of blood backup from scarring and nodular changes in the liver causing compression of the veins and sinusoids.
Leads to esophageal and gastric varices |
|
Esophageal and gastric varices are?
what causes them? |
Blood vessels that rupture and bleed excessively.
Causes: development of collateral channels of circulation in inelastic, fragile esophageal veins |
|
What is compensated cirrhosis?
|
Patients without complications
|
|
What is decompensated cirrhosis?
|
Patients that have one or more complications of their disease.
|
|
Peripheral edema results from?
|
Decreased colloidal oncotic pressure from impaired liver synthesis of albumin and increased portacaval pressure from portal hypertension.
|
|
Ascites is? results from?
|
Is the accumulation of serous fluid in the peritoneal or abdominal cavity.
Results from the lymphatic system is unable to carry off the excess proteins and water, hypoalbuminemia, hyperaldosteronism, increase in ADH. |
|
What are the S/S of ascites?
|
Patient has S/S of dehydration bc of fluid volume deficit systemically from 3rd spacing.
- dry tongue and skin - sunken eyeballs - muscle weakness - decrease in urinary output - hypokalemia |
|
What is asterixis and fetor hepaticus? when are they sometimes seen?
|
Asterixis- flapping temors
Fetor hepaticus- musty, sweet odor of the pt's breath Only seen in severe cases of hepatic encephalopathy. |
|
Explain hepatorenal syndrome
|
- Functional renal failure with azotemia, oliguria, and intractable ascities.
- no structural changes to the kidneys - can be reversed by liver transplant because kidneys are not usually damaged |
|
What are the usual lab findings in cirrhosis?
|
- Enzyme levels (AST, ALT, and GGT) are initially elevated
- In compensated or end stage AST and ALT levels may be normal. Decreased protein, decreased albumin, increased serum bilirubin, increased globulin levels - decreased cholesterol levels - Prothrombin time is prolonged |
|
Nursin Care for Ascites
diet? meds? procedures? |
Diet- Na restriction
Meds- Diuretics Procedure- Fluid removal: Paracentesis, Peritoneovenous Shunt |
|
Nursing Care for Varices
Goal? avoid? Procedures? |
Goal- avoid bleeding/hemorrhage
Avoid- alcohol, aspirin, irritating foods Procedures: - Endoscopic ligation: banding of varices - Ballon tamponade: controls hemorrhage by compression of varices |
|
Nursing Care for Hepatic Encephalopathy
treatment? |
- restrict protein intake in early stages
- give lactulose - d/c sedatives, tranquilizers, analgestics |
|
What is Laennec's cirrhosis?
|
associated with alcohol abuse
|
|
What is Postnecrotic cirrhosis?
|
A complication of viral, toxic, or idiopathic hepatitis. Scar tissue form in the liver.
|
|
What is Biliary cirrhosis?
|
Chronic biliary obstruction and infection.
|
|
What is Cardiac cirrhosis?
|
Results from severe right sided heart failure in clients with cor pulmonale.
|
|
What to look for in an assessment for cirrhosis?
|
- Past history of alcoholism, viral hepatitis
- weight loss - jaundice - abd distension - n/v - altered mentation - RUQ pain - abnormal lab values |
|
Main points in nursing implementation of cirrhosis
|
- treat alcoholism
- identify hepatitis early and treat - stress importance of adequate nutriton - identify biliary disease early and treat |
|
What is viral hepatitis?
|
Inflammation and necrosis of hepatic cells.
- bile flow is impaired - necrosis occurs in spotty pattern - liver cells may regenerate during recovery period |
|
What drugs should be avoided with cirrhosis?
|
-Aspirin
- Acetaminphen - NSAIDs |
|
5 types of hepatitis
|
- HAV
- HBV - HCV - HDV - HEV |
|
HAV
also known as? mode of transmission? |
"Infectious hepatitis"
Fecal- oral route, poor sanitation |
|
HAV
Incubation period? S/S? |
15-50 days
Can occur with or without symptoms and only show after incubation Flu like -headache, anorexia, fever in early stage - dark urine, jaundice in later stage |
|
HAV
vaccine? high risk groups? outcome? |
Vaccine: 2 doses that be given up to 2 weeks of contact
High risk group: homosexual men, IV drug users, day care workers Outcome: - usually mild with recovery - fatality rate less than 1% - no carrier state - no increased risk of chronic hepatitis, cirrhosis or hepatic cancer |
|
HAV
Nursing management includes? |
- stressing good hygiene
- enviromental saniation |
|
True or false
HAV increases your risk of chronic hepatitis, cirrhosis, and hepatic cancer. |
False
|
|
HAV
When is the person infectious? |
2 weeks before onset of symptoms and until 1-2 weeks after symptoms start
|
|
HBV
also known as? Transmission? |
"Blood hepatitis"
Transmission- blood and body fluids, through mucous membranes and breaks in skin |
|
HBV
At risk groups? What profession is at great risk for this disease? |
IV drug users and homosexual activity, tattoos, piercing
Health care workers at great risk |
|
HBV
Incubation? S/S |
1-6 months
May occur without symptoms, may develop arthralgias, rash |
|
True or False
HBV is more infectious than HIV and can stay on surface for up to 7 days. |
True
|
|
HBV
vaccine? |
- 3 doses
- recommended for all health care workers - passive immunity provided by hepatitis B immune globulin - recommended for people exposed to HBV who have not recieved the vaccine or never had HBV |
|
HBV
Nursing management? |
- teaching patient proper nutrition, rest, and prevention of spread
|
|
HBV
carrier state? increased risk? |
Carrier state possible
Increased risk for cirrhosis, chronic hepatitis and hepatic cancer |
|
HBV
Types of meds given? |
- a- interferon
- nucleoside and nucleotide analogs |
|
HCV
also known as? transmission? |
"Non A, Non B hepatitis"
Transmission through blood transfusion, exposure to blood contaminated equipment or drug paraphernalia (most common), or sexual contact |
|
HCV
incubation? who is at risk? |
15-160 days
Dialysis patients are at risk |
|
HCV has a similar clinical course to which other hepatitis?
|
HBV
|
|
HCV
carrier state? Increase risk for? |
Chronic carrier state occurs frequently
Increase risk for chronic liver disease and cancer |
|
HCV
treatment? |
- interferon
- ribavirin |
|
True or False
HCV accounts for 30% of liver transplants in US. |
True
|
|
HDV
who is at risk? tranmission? |
ONLY individuals with HBV are at risk
Transmission through sexual contact and IV drug use |
|
HDV
S/S? treatment? |
S/S similar to HBV, more likely to progress to chronic active hepatitis and cirrhosis
Investigation into interferon as treatment |
|
HEV
transmission? similar to? |
Transmitted through fecal- oral route
Similar to HAV |
|
HEV
main S/S? |
Jaundice
|
|
True or False
HEV is common in the USA. |
False
|
|
Acute hepatitis S/S
6 main ones |
- malaise
- anorexia - fatigue - nausea - occasional vomiting - RUQ discomfort |
|
Chronic hepatitis S/S
|
- malaise
- easy fatigability - hepatomegaly - myalgias and/or arthralgias - elevated liver enzymes AST, ALT |
|
Cholelithiasis is?
|
- stones in the gallbladder
- most common disorder of biliary system |
|
Cholecystitis is?
|
- inflammation of the gallbladder
- usually associated with cholelithiasis |
|
Risk factors of gallbladder disease
|
- higher in women, multiparous women, and persons over 40 years
- estrogen therapy increases risk - sedentary lfestyle - familial tendency - obesity |
|
Cholecystitis is most commonly caused by?
other causes? |
obstruction with gallstone or biliary sludge
Other causes: - older adults - trauma - extensive burns - recent surgery - lose alot of weight quickly |
|
Due to the inflammation of cholecystitis what duct may become occulded?
|
Cystic duct
|
|
What are the most common form of gallstones?
|
Stones that are primarily cholesterol
|
|
What components precipitate into gallstones?
|
- cholesterol
- bile salts - bilirubin - calcium - protein |
|
Where do the stones go?
|
Stones can remain in the gallbladder or migrate to the cystic or common bile duct
|
|
What happens if a blockage occurs due to a gallstone?
|
- bile can continue to flow into the dupdenum directly from the liver
- statis of bile can occur |
|
Gallbladder disease
S/S? In general |
Varies from
- indigestion - moderate to severe pain - fever - jaundice - increased WBCs |
|
Initial symptoms of acute cholecystitis
|
- indigestion
- RUQ pain - possible shoulder pain - N/V - restlessness - diaphoresis |
|
Acute cholecystitis
when do attacks occur after meals? |
Usually 3-6 hours after meal
|
|
Chronic cholecystitis
patient have a history of? |
- fat intolerance
- dyspepsia - heartburn - flatulence |
|
For cholelithiasis what does severity depend on?
|
- presence of obstruction
- whether stones move or not |
|
True or False
Cholelithiasis can have no symptoms at all. |
True
|
|
What is biliary colic?
|
When stones get lodged in the ducts or are moving spasms occur that produce severe pain. The pain is more steady than colicky though.
|
|
Total obstruction symptoms of cholelithiasis
|
- jaundice
- dark color urine (bilirubin) - clay color stool - pruritis (bile salts in the skin) - intolerance to fatty foods - bleeding tendencies - steatorrhea (fatty stools, "floater") - no urobilinogen in urine |
|
Complications of cholecystitis
|
- Gangrenous cholecystitits
- Subphrenic abscess - Pancreatitis - Cholangitis - Biliary cirrhosis - Fistulas - Gallbladder rupture |
|
Complications of cholelithiasis
|
- Cholangitis (inflammation of biliary ducts)
- Biliary cirrhosis - Carcinoma - Peritonitis - Choledocholithiasis (gallstones in common bile duct) |
|
Gallbladder disease
Lab test abnormalities |
- elevated WBCs
- elevated serum bilirubin (direct and indirect) - blockage: elevated urinary bilirubin, ALT - Pancreatic involvement: elevated serum amalyse |
|
What does a transhepatic biliary catheter do?
|
Opens things up, not curing anything but making patient comfortable.
Used before surgery or when it is inoperable. Connected to a drainage bag. |
|
Most common meds used for gallbladder disease
|
- Analgesics
- Anticholinergics - Fat soluble vitamins - bile salts Also have dissolution therapy, takes 6months to 12 yrs |
|
What are the dietary therapy of a patient with gallbladder disease?
|
- low fat diet (avoid diary products, fried foods, rich pastries, gravy, nuts
- reduced calorie diet if obese - eat small more frequent meals - |
|
What is the best position to put the patient in if they are experiencing shoulder or abdominal pain after surgery for cholecystectomy?
|
Sim's position, lies on one side with the under arm behind the back and the upper thigh flexed
|
|
What are the three parts of the pancreas?
|
Head, body, tail
|
|
The pancreatic duct enters the duodenum through the ?
|
Common bile duct (CBD)
|
|
Pancreatic enzymes are the exocrine function of the pancreas. What are these 4 enzymes?
|
- trypsinogen
- chymotrypsin - amylase - lipase |
|
What is the function of pancreatic enzymes?
|
aid in digestion
|
|
What is the endocrine function of the pancreas?
|
Insulin
|
|
What are the main causes of acute pancreatitis?
|
- alcoholism (most common in males, decreased blood flow and poor nutrition
- gallbladder disease (gallstones # 1 cause) |
|
What happens to the pancreas when it becomes inflammed?
|
- autodigestion of pancreas, enzymes are activated in pancreas instead of duodenum
|
|
Acute Pancreatitis
S/S? |
- abdominal pain, severe LUQ or midgastric region, sudden, deep, peircing, steady, can radiate to pt's back
- N/V - fever - leukocytosis - hypotension - tachycardia - jaundice - Grey Turner sign (blue flank) - Cullen's sign (blue belly button) |
|
Acute Pancreatitis
Complications? |
- Hypovolemia from 3rd space shifting
- Pseudocyst - Abscess - Pulmonary - CV - Tetany, hypocalcemia - Hyperglycemia - Hyperlipidemia |
|
Acute Pancreatitis
Lab studies |
- Serum amylase, increased (< 200 U/L (1-130 normal))
- Serum lipase, increased (1-160 normal) - Urinary amylase elevated |
|
Acute Pancreatitis
Treatment? |
- pain relief
- F & E replacement - Bowel and pancreatic rest (may see NG tube used for decompression) - Sometimes antibiotics - Surgical therapy |
|
What is the dietary teaching for someone with acute pancreatitis?
|
Low fat
encourage carbohydrates |
|
Chronic pancreatitis
what is happening to the pancreas? S/S? |
- structural changes from so many flare ups
- functional capabilites decline- especially exocrine, weight loss and unable to ingest and absorb food - possible development of diabetes mellitus from damage to pancreas S/S: similar to acute but more gradual, cramping, burning pain |
|
Chronic Pancreatitis
Management? |
- AVOIDANCE OF ALCOHOL
- dietary changes: high carbs, low fat - meds to digest food, given with food |
|
Pancreatic Cancer
what kind of cancer is it? where do half of cases occur? what can get obstructed? |
- Adenocarcinoma
- In the head - CBD can become obstructed from tumor growth |
|
Is the care for pancreatic cancer more about curing it or more pallative?
How long do most patients have to live after dx? |
- Pallative
- 5-12 months |
|
Pancreatic Cancer
Risk factors? |
- cigarette smoking
- high fat diet - diabetes - exposure to chemicals |
|
Pancreatic Cancer
S/S? |
Similar to pancreatitis
- abdominal pain - anorexia - weight loss - nausea - jaundice |
|
Pancreatic Cancer
When is it usually dx? By what tests? |
- Dx in the advanced stages
- abdominal ultrasound - CT scan - ERCP - Tumor markers: CA19-9 increased and GB CEA, also seen in gallbladder cancer |
|
What is the Whipple procedure?
|
Remove entire pancreas and certain other structures and then reattached.
|