Week 10: Hepatic Fxn and Transplant Flashcards

1
Q

Liver

A

largest GLAND in the boyd at 3-4 pounds

highly vascular wiht 4 different lobes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where is the liver located

A

beneath the diaphragm and right upper quadrant

this is important since it is close to the GI tract where it gets nutrients and plays a key role in whether these are stored or not

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

About how much blood circulates in the liver and how much is stored in the liver

A

1.5 L circulate within the liver with 200-400 mL of blood being stored by it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Portal Vein

A

75% of blood to the liver goes through the portal vein which is NUTRIENT RICH OXYGEN POOR blood from the spleen, intestines, etc

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Hepatic Artery

A

25% of blood to the liver is goes through the hepatic artery from the heart and is NUTRIENT POOR OXYGEN RICH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What happens to the blood entering the liver lobules from the portal vein and hepatic artery

A

The blood mixes in the liver lobules –> through the hepatic veins –> inferior vena cava –> heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Functions of the Liver

A
  1. Glucose Metabolism
  2. Ammonia Conversion
  3. Protein Metabolism
  4. Fat Metabolism
  5. Vitamin and Iron Storage
  6. Bile Formation
  7. Bilirubin Excretion
  8. Drug Metabolism
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How does the liver do glucose metabolism

A

it helps maintain a stable blood glucose by storing glucose as glycogen and then converting it to glucose when needed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the ammonia conversion function of the liver

A

ammonia is what is left over after protein breakdown

liver takes ammonia and converts it to urea for excretion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Why are ammonia levels super important

A

ammonia can be toxic so levels are important to look at with hepatic disorders

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the protein metabolism of the liver like

A

the liver makes proteins needed for clotting (so liver issues can lead to bleeding issues)

This means Vitamin K intake is important as it is needed to make factors in the liver

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does the liver do to fat

A

it stores fat and breaks it down to be used as energy, but too much can cause a fatty liver

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What sort of vitamins adn minerals are stored in the liver

A

Vitamin A, B, D, Iron and Copper

Vitamin K is used a lot to make clotting factors here as well

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Bile

A

a substance made and released in the liver to the gallbladder (storage)

when needing to digest fats the bile can emulsify them to help move them out of the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Bilirubin

A

what is left once RBCs die and break down

it is carried into intestines and excreted in stool to cause the brown coloring

can be excreted in urine but the liver is working to get rid of the RBCs as they die and dispose of it in a timely manner

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The liver is basically a ___ of the body

A

gatekeeper (think first pass)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

More than ___% of the liver can be damaged before changes become abnormal

A

70

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What sort of Liver Lab studies are done and seen with abnormal livers

A

CEA - presence can indicate cancer

PT increase - prolonged clotting = more bleeding

Protein Studies - Low levels means liver isnt making them

ALT, AST = Liver damage and enzymes release into blood

Bilirubin, Cholesterol (decreased in liver disease), and Ammonia (damage means higher as it usually becomes urea)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Liver Biopsy

A

Needle aspiration through the abdominal wall for analysis

A transvenous version can be done with fluoroscopy for real time rays guiding through the hepatic vein to the liver

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Complications of a Liver Biopsy

A

bleeding

potential for bile peritonitis if gall bladder damaged

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What needs to be done prior to a liver biopsy

A

coagulation studies since risk for bleeding is so high

we may even want to wait until pt is clear with meds to prevent bleeding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Blind Needle Aspiration

A

a version of liver biopsy where they are ultrasound guided or done laproscopically

used with severe ascites or abnormal anticoagulation studies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What needs to be done after a liver biopsy

A

Pt lay on right side for several hours to push liver against the costal margin for compression (can use a pillow)

2-3 hours of this

avoid coughing or straining

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

How often should you check VS after a liver biopsy

A

every 10-15 min for the first hour then every 30 minutes for the next 1-2 hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Things neede after a liver biopsy
right side, pillow, dressing, 2-3 hours avoid coughing and straining VS protocol avoid heavy lifting for a week
26
General CAUSES of Liver Dysfunction
Acetaminophen Overdose / Prescription Meds like NSAIDS, antibiotics, anticonvulsants Herbal supplements (Skull cap, penny roal) Hepatitis and other viruses like CMV, Herpes, and Epstein Barr ETOH and Toxins Autoimmune Diseases Diseases of the veins in the liver Metabolic Disease Cancer
27
What are some general s/s of liver dysfunction
pallor jaundice muscle atrophy edema vitamin deficiencies skin excoriation r/t itching petechiae ecchymotic areas spider angiomas palmar erythema neuro changes male specific changes unstable blood glucose
28
What causes jaundice?
When the body cannot excrete bilirubin it will leek into the dermal layers causing the coloring Also since it seeps onto the peripheral nerves it causes scratching and itching
29
Why does liver dysfunction cause muscle atrophy
because there is decreased ability to make protein
30
Why does edema occur from liver dysfunction
because of low protiein levels proteins hold water in the bloodstream and prevent it from leaking out, but if these levels are low then water will begin third spacing
31
Why does petechiae occur with liver disease
broken capillaries its because there is a low platelet count associated with it
32
What causes the ecchymosis seen with liver dysfunction
the increased clotting time since the lvier cannot make the clotting factors
33
Spider Angiomas
abnormal collection of blood vessels near the surface of the skin the liver cannot metabolize the circulating estrogen causing dilation of the vessels and causing this to form
34
What about liver dysfunction causes the palmar erythema
red itchy hands due to estrogen which is dilating the vessels
35
What sort of changes occur in males as a result of liver dysfunction
gynecomastia testicular hypertrophy (all due to hormone metabolism being improper)
36
What sort of neuro changes occur with liver dysfunction and why?
cognition issues, tremors, asterixis, weakness, slurred speech It occurs because large amounts of ammonia build up and seep into the neuro system
37
Asterixis
s/s of hepatic encephalopathy/cirrhosis the patient will hold the hand out and dorsiflex for a few seconds. If the patients hand begins flopping down and up it is a sign "flapping tremor"
38
Child-pugh Classification
scale used to predict the outcomes of patients with liver disease
39
What is the total child-pugh score based on
5 Parameters: Ascites Bilirubin Albumin PT Encephalopathy Stage
40
The ____ the child-pugh score the ___ the prognosis
higher; poorer
41
What are the points like in the child-pugh classification
Grade A = score of 1-6 Grade B = Score of 7-9 Grade C = Score of 10-15 Each category is 1,2, or 3 points from absent, slight to moderate The higher the score the worse
42
What is the most common type of jaundice with liver disease
hepatocellular/ OBSTRUCTIVE jaundice
43
4 types of Jaundice
Hemolytic Hepatocellular Obstructive hereditary
44
Hemolytic Jaundice
Increased destruction of RBCs - maybe liver is fxning but bilirubin isnt secreted as fast as breakdown is could be from a hemolytic transfusion rxn with a high level fo free/unconjugated bilirubin
45
At what level of bilirubin is the CNS beginning to have effects on it
20-25 mg/dL
46
Hepatocellular Jaundice
Liver cells are damaged so bilirubin cannot be cleared Can occur with cirrhosis, hepatitis, and other dx of damaged liver underlying pathology - so there may be anorexia, fatigue, malaise, weakness, weight loss
47
Hereditary Jaundice
Result of several inherited disorders characterized by an increase in unconjugated bilirubin hereditary in nature
48
Obstructive Jaundice
bile duct occlusion from gall stones, tumors, or inflammation bile backs up in intestines intolerance to fatt foods, voiding orange foamy urine and clay colored stool
49
What are some interventions for Jaundice
soothing baths for itchiness keeping naisl as short as possible other ways of providing good skin care to the patient
50
Signs/Symptoms of Hepatocellular Jaundice
mild or severely ill lack of appetite, NV, weight loss malaise, fatigue, weakness HA, chills, fever, infection
51
S/S of Obstructive Jaundice
dark orange brown urine clay colored stools dyspepsia and intolerance of fatsand impaired digestion pruritis
52
General Consequences of Liver Dysfunction
ascites esophageal varices hepatic encephalopathy hepatic coma
53
Portal HTN
associated with cirrhosis increased pressure in the portal venous system from obstruction of blood flow into and through the damaged liver
54
Major consequences of portal HTN are __ and __
ascites and varices
55
Why can splenomegaly and thrombocytopenia occur with portal HTN
blood back up increases platelet pooling in the spleen increasing the size this pooling also accounts for the worsening thrombocytopenia
56
Ascites
Shifting of fluid into the peritoneal cavity manifests as distention and pressure can lead to an umbilical hernia
57
Why does ascites occur
combination of portal HTN and obstruction of blood flow through the damaged liver cells which causes SODIUM and WATER RETENTION leading to hypovolemia Basically, if liver not working no proteins are broken down --> albumin synthesis and osmotic pressure decreases --> fluid shifts into peritoneal cavity
58
Diagnostic Findings for Ascites
SHIFTING DULLNESS - on percussion Flank Edema Fluid Wave
59
Shifting Dullness
percussion sound of ascites the area of dullness changes moving supine to side lying
60
Abdominal Fluid Wave
a way to assess for ascites place hands on the sides of the patients flank and strike one side of the flank this will detect a wave with the other hand on the opposite side
61
What is the major complication of ascites
spontaneous bacterial peritonitis (SBP)
62
Spontaneous Bacterial Peritonitis
ascites fluid in the peritoneal cavity gets infected there may be no clinical signs of this but if they do show it is worsening liver fnx, malaise, and fever
63
What is needed to diagnose spontaneous bacterial peritonitis
a pericentesis
64
What is the treatment for SBP
antibiotics and prophylactic antibiotics to prevent recurrence
65
Hepatorenal syndrome
a potential complication coming from SBP if the SBP is untreated or v aggressive this syndrome can occur which is renal failure without any pathological changes to the kidney
66
Medical management of Ascites
1. Low Sodium Diet 2. Diuretics 3. Bed Rest (Lay Down) 4. Paracentesis 5. TIPS
67
What is the salt limitation maximum with ascites
500 mg-2 G a day
68
What is important to teach about the low salt diet with ascites the patient may not realize
to avoid salt substitutes because they can have ammonia in them and if the liver is damaged it cannot get rid of them
69
Paracentesis
removal of fluid from the peritoneal cavity via a puncture or small incision to the abdominal wall under sterile conditions no longer routine tx, but just dx and examination of fluid or for large ascites done via ultrasound
70
What position should a patient be in during paracentesis
Upright to keep the fluid near the abdominal wall and promote easier puncture and removal of peritoneal fluid
71
Risk of paracentesis
risk of infection risk for bleeding (esp with a compromised liver)
72
Pre-Op Paracentesis
Check Consent Have Patient Void (comfort and prevent injury) Monitor VS Obtain weight and abdominal girth
73
Intra-Op Paracentesis
position as upright as possible monitor VS monitor for s/s of hypovolemia (pallor, tachycardia, hypotension)
74
Post-Op Paracentesis
Monitor for s/s of hypovolemia obtain weight and abdominal firth measure, describe, document fluid collected assess puncture site for drainage (pressure dressing may be applied) check and monitor neuro status limit activity fluid/lyte replacement (albumin) (to correct ineffective blood volume that can lead to sodium retention)
75
TIPS stands for
Transjugular Intrahepatic Portosystemic Shunt (Procedure)
76
Purpose of TIPS
decrease portal HTN which can contribute to ascites done for refractory ascites (ascites not responsive to Na restriction or diuretics) and after several rounds of paracentesis
77
Big Risk of TIPS
considerable risk for encephalopathy
78
What happens during TIPS
cannula goes into a portal vein and an expandable stent is placed to serve as a shunt between portal circulation and the hepatic vein this decreases sodium retention and improves renal response to diuretic therapy as a result
79
What are some of the procedures to treat ascites
Paracentesis Diet and Diuretic TIPS Peritoneovenous Shunts (Denver, LeVeen)
80
Peritoneovenous Shunts
Drains or catheters permanently placed if patients have frequent ascites hx and dont need to keep getting paracentesis prevents incisions and constant procedures needed can also drain lung fluid shunts fluid from the peritoneal cavity into systemic circulation (through the internal jugular vein or superior vena cava)
81
What is the issue with peritoneovenous shunts
they are hard to maintain long term a liver transplant may ultimately be considered
82
Education for those with Ascites
defintion of ascites rationale for low sodium diet, bed rest medications (diuretics) major complication (spontaneous bacterial peritonitis paracentesis and TIPS
83
Things to monitor with ascites
abdominal girth q shift daily weight strict I&Os fluid and electrolyte balances respiratory status s/s of encephalopathy
84
Most common cause of Ascites
cirrhosis
85
Main contributor to why ascites occurs
portal HTN exact patho is unknown but sodium retention related to portal HTN is the key
86
What is the pathway of treatment for ascites
1st line: Sodium restriction diet and aldactone K sparing diuretic 2nd: may add loop diuretic like lasix 3rd - paracentesis 4th - TIPS / P Shunt 5 - liver transplantation
87
Varices
Another complication from liver disorders Portal HTN occurs so the veins drain into the portal system and are subject to high pressure from the liver this makes the veins distended, tortuous, and varicosities develop can occur in the esophagus and stomach
88
More than 50% of ___ patients will develop varcies
cirrhosis
89
Why is a varicosity rupture a medical emergency
the patient can bleed out fast plus with liver issues theres coagulation issues so its even faster than normal
90
What sort of things can cause a varices rupture/bleeding
heavy lifting sneezing coughing vomtiting reflux straining ASA
91
What are some of the manifestations of varices
hematemesis melena general deterioration of physical and mental status s/s of shock - develop fast
92
What can happen if the s/s of shock from varices does not occur
then renal perfusion may be decreasing leading to ammonia levels rising high and leaving them at risk for encephalopathy
93
What diagnosis presence of varices bleeding
ENDOSCOPY Also: CT, Barium Swallow, Angiography
94
What are some of the interventions for bleeding varices
ICU admission and transfer: Balloon tamponade vasopressin sclerotherapy banding TIPS
95
How does a balloon tamponade help bleeding varices
a gastric balloon entered through the nsoe will inflate and sit in the stomach to compress varices in the esophagus but it will need frequent suctioning
96
Why should there always be scissors bedside with a balloon tamponade
in case the tube slips or move you need to be able to cut the tube fast to prevent asphyxiation
97
Why is cardiac monitoring important with a balloon tamponade
the placement of the tube can stimulate the vagal nerve so it could cause bradycardia and we need to monitor for thatq
98
What is used to minimize ballooon tamponade displacement
traction
99
Why use vasopressin for bleeding varices
Causes vaso constriction to decrease portal pressure BUT contraindicated for those with CAD (can cause MI) Caution: has diuretic effect so monitor lytes, Na, and K levels
100
Why use beta blockers for bleeding varices
decrease portal pressure and can be used as prophylaxis for bleeding
101
Sclerotherapy
endoscope sclerosing agent injected into a varices to shrink it you then monitor for esophagus perforation, aspiration pneumonia, and strictures
102
Varices Banding
using an endoscope, a tube with rubber bands goes in and suctions and then bands a bleeding varices until it necroses and falls off
103
Hepatic Encephalopathy
(Portosystemic Encephalopathy (PSE)) The FINAL consequence of hepatic dysfunction Life Threatening Profound liver failure causing neuropsychiatric (not physical) manifestations
104
How fast is the presence or onset of hepatic encephalopathy
can be gradual OR sudden
105
What are some s/s of Hepatic Encephalopathy
sleep and behavioral changes patient is confused and unkempt alterations in mood or sleep patterns
106
What are the 2 explanations for Hepatic Encephalopathy
1. Ammonia | 2. Portosystemic Shunting
107
Ammonia explanation of hepatic encephalopathy
The liver is unable to detoxify these ammonia byproducts, so levels build up to neuropsych conditions by saturating the CNS
108
Portosystemic Shunting explanation of hepatic encephalopathy
Since the liver is not working, the blood if shunted through with toxic substances to collateral vessels These substances end up in systemic circulaton causing the neuropsych symptoms
109
What are some things that can precipitate encephalopathy when there is liver dysfunction
things increasing ammonia levels!!!: GI bleeding (HgB breakdown stimulating ammonia increase) high protein diets bacterial infections hypercatabolic state (excessive breakdown of body tissue or substances) renal failure leading to inability to clear ammonia
110
How many stages of hepatic encephalopathy are there
4 stages
111
Stages of Hepatic Encephalopathy S/S
1: LOC nL, lethargy, euphroai, up at night sleep during day, normal EEG, inability to draw line figures, asterixis 2: drowsy, disoriented, mood swings, abnormal EEG 3: Stupour, hard to rouse, sleeps a lot, confusion, increased DTRs, rigid extremities 4: Comatose, absence of DTR and asterixis, flaccid extremities, seizures
112
Nursing Dx for Hepatic Encephalopathy
1: Activity intolerance, self care deficit 2: impaired social interaction, ineffective role performance, risk for injury, confusion 3: Imbalanced nutrition, impaired mobility, impaired verbal communication 4: risk for aspiration, impaired gas exchange, impaired tissue integrity
113
Constructional Apraxia
a symptom of hepatic encephalopathy graphic evidence of hep. enceph. Progresses from not being able to produce a simple figure in 2 or 3 dimensions and gets worse
114
Medical Management of Hepatic Encephalopathy focuses on what
eliminating precipitating factors
115
What are some of the nursing care ways for patients with hepatic encephalopathy
ammonia lowering therapy - medicine, fruit juice po, NG or enema IV glc - record I&O, monitor sugar, explain meds Vit/Lyte - explain reason and monitor antibiotic - explain and report s/s infection prevent worsening and consider liver transplant - VS q 4 hours, neuro check, daily weight, etc home care teaching like diet
116
Why is lactulose given to hepatic encephalopathy patients
it works to remove ammonia by trapping it and allowing for it to be expelled in feces
117
Why is IV glucose given to someone with hepatic encephalopathy
to minimize protein breakdown and reduce the amount of free ammonia floating around in the body
118
When is a protein restricted diet used for hepatic encephalopathy
only if lactulose does not work it only is used short term because longer restrictions do more damage than good vegetable proteins are tolerated better and high protein diet is contraindicated because of ammonia production
119
Viral Hepatitis
systemic infection that can cause necrosis of liver cells this can then produce a cluster of physical, chemical, and biochemical changes
120
Hepatitis A
A viral hepatitis spread by poor hand hygiene liver infection
121
How is Hep A Spread
fecal-oral
122
Hep A mostly infects what population
younger children - esp those in daycare
123
Incubation of Hep A
2-6 weeks
124
How long does Hep A last
4-8 weeks
125
What is the mortality rate of Hep A
0.5% for those younger than 40 and 1-2% for those over 40 years old
126
Manifestations of Hep A
2 Phases: 1. Mild flu like symptoms, low grade fever, anorexia 2. Jaundice, dark urine, indigestion, epigastric distress, enlargement of spleen and liver
127
What is management of Hep A like
PREVENTION Bed rest during the acute phase Nutritional Support
128
What are some ways to prevent Hep A
good handwashing, safe water, proper sewage disposal vaccination immunoglobulins for passive immunity
129
When must immunoglobulins be given to prevent Hep A
must be administered with 2 weeks of having symptoms, but past that there is less effectiveness
130
Hepatitis B
viral liver infection transmitted through blood, saliva, semen, and vaginal secretions
131
How is Hep B transferred
sexual transmission Needle drug use to infants at time of birth (blood semen saliva vaginal secretions)
132
Hepatitis ___ is a major worldwide cause of cirrhosis and liver cancer
B
133
How long is the incubation period of HepB
1-6 months
134
S/S of Hepatitis B
Variable and Insidious Similar s/s to A: loss of appetitive, dyspepsia, abdominal pain, generalized aching, malaise, weakness Jaundice may or may not be evident unlike in HepA
135
Medications for Chronic Hepatitis Type B
alpha interferon and antiviral agents: entecavir (ETV) and tenofovir (TDF)
136
Treatment for Hepatitis B
Medications Bed rest and nutritional support vaccinations
137
What is vaccination like for Hep B
for person at high risk routine vaccination of infants passive immunization for those exposed standard precautions and infection control measures screening of blood and blood products
138
Hepatitis C
virla liver infection transmitted by blood and sexual contact including needle sticks and sharing of needles s/s usually mild
139
Hep _ is the most common bloodborne infection
C
140
Hep _ is a cause of one third of cases of liver cancer and most common reason for liver transplant
C
141
Incubation period of Hep C
variable - 15 to 160 days wide incubation period
142
What frequently occurs with Hep C
chronic carrier state
143
Management Methods of Hep C
antiviral meds avoid alcohol which potentiates the disease and medicines impacting the liver prevention (programs to decrease needle sharing in drug users) screening of blood supply safety needles for healthcare workers
144
Hepatitis D
blood and sexual contact transmission viral liver infection
145
Hepatitis D can only occur...
in persons with Hepatitis B
146
What are some examples of ways to get Hep D
use of IV or injection drugs patients undergoing hemodialysis recipients of multiple blood transfusions
147
What is likely to develop because of Hep D
fulminant liver failure or chronic active hepatisis and cirrhosis
148
Incubation period of Hep D
30-150 days
149
What is the only licensed drug available for Hep D infection
interferon alfa
150
Hepatitis E
transmitted fecal-oral route through contaminated water viral liver infection
151
Incubation period of Hep E
15-65 days
152
How does Hep E present
similar to Hep A self limiting abrupt onset not chronic
153
How to prevent Hep E
handwashing clean water good hygiene
154
Non-Viral Hepatitis
inflammation of the liver r/t hepatotoxins rather than a virus Can be Toxic Hepatitis or Drug Induced Hepatitis - both are acute events with chronic implications things like carbon tetrachlorides and meds like acetaminophen cause it
155
Toxic Hepatitis
non viral hepatitis but resembles viral hepatitis ingestion of hepatotoxic chemicals causes this
156
S/S of Toxic Hepatitis
fever extreme physical weakness hematemesis vascular collapse delirium seizure coma
157
Drug Induced Hepatitis
non viral hepatitis comes from ingestion of hepatotoxic chemicals in medications
158
S/S of Drug Induced Hepatitis
abrupt onset of: chills, fever, rash pruritis, arthralgia, anorexia, nausea jaundice, dark urine, enlarged and tender liver
159
WHy are tx options limited for non viral hepatitis
because antidotes are limited
160
What may have to happen if non viral hepatitis is not caught early enough and gets severe
liver transplantation will have to be considered | `in the interim fluid and electrolyte balance, blood replacement, and comfort/support measures are the treatment options
161
Fulminant Hepatic Failure
a clinical syndrome of sudden and severely impaired liver function Normally appears in a previously health person - and the patient has gone from being well to jaundice which progresses to encephalopathy quicky within 72 days
162
Most common cause of fulminant hepatic failure
viral hepatitis but it can be caused by drug and toxic hepatitis, and hereditary issues
163
Assessment Findings of Fulminant Hepatic Failure
jaundice profound anorexia coagulation defects renal failure lyte disturbances cardiovascular abnormalities infection hypoglycemia encephalopathy cerebral edema
164
Tx of Fulminant Hepatic Failure
liver transplant | however plasma exchange and prostaglandin therapy can be used to treat with less favorable results
165
What is Plasma Exchange therapy for hepatic failure
A correction of coagulation defects where pt blood is separated from plasma and returned with the plasma of a donor not great results and usualyl they still will need a liver transplant anyways
166
Interventions for Fulminant Hepatic Failure
ID root cause ICU admission and transfer Antidote plasma exchanges prostaglandin therapy intracranial monitoring mannitol (cerebral edema) liver transplant
167
The liver is able to regenerate itself, but what is the point where there is total hepatocyte damage that is irreversible
if more than 70% of liver fxn declines
168
Cirrhosis
when liver fxn declines more than 70% and hepatocyte cells that are damaged are replaced by scar tissue causing nodules, bumpy appearance of the lvier, and interfere with normal vascular pathways "Irreversible scarring that disrupts normal function and structure of the liver"
169
Alcoholic Cirrhosis
most common cirrhosis Cirrhosis due to alcoholism, chronic
170
Postnecrotic Cirrhosis
second most common cirrhosis type Cirrhosis commonly caused by viral hepatitis appears as broad bands of scar tissues
171
Biliary Cirrhosis
Least common type of cirrhosis scarring occurring on bile ducts causing biliart obstruction and infection itself
172
How do we learn of diagnosis and severity of cirrhosis
CT Liver Biopsy MRI Radioisotope Liver Scan
173
The two phases of liver cirrhosis are ___ and ___
compensated ; decompensated
174
Compensated Cirrhosis
first stage of cirrhosis with vague symptoms of the body trying to compensate but can only do so for so long
175
S/S of Compensated Cirrhosis
intermittent mild fever spider hemangiomas palmar erythema unexplained nosebleed ankle edema vague morning indigestion flatulent dyspepsia r/t malabsorption abdominal pain firm and enlarged liver splenomegaly
176
Decompensated Cirrhosis
second stage of cirrhosis body cannot compensate anymore and signs get much worse and severe
177
S/S of Decompensated Cirrhosis
ascited jaundice weakness muscle wasting weight loss continuous mild fever clubbing of fingers r/t hepatopulmonary syndrome purpura r/t thrombocytopenia spontaneous bruising nosebleeds r/t low plts and portal HTN hypotension sparse body hair (blood flow drops and albumin level) white nails gonadal atrophy
178
What are the 2 main complications from Cirrhosis
Hepatorenal Syndrome Hepatopulmonary Syndrome
179
Hepatorenal Syndrome
decrease in renal function related to liver disease/cirrhosis the kidneys are fine and functionally fine but the blood flow is compromised due to portal HTN causing the renal system to fail
180
Hepatopulmonary Syndrome
decrease in lung function related to liver disease/cirrhosis the lungs are fine and functionally fine but increased portal HTN leads to backflow in the pulmonary system this can then stress out the heart because it increases CO and decreases peripheral resistance as well
181
Most liver cancer comes form what?
Few cancers actually originate in the liver, mostly cancer metastasizes there and the liver is a frequent site of metastatic cancer
182
If cancer does originate in the liver, what is it related to
usually associated with hepatitis B and C (hepatocellular carcinoma - HCC)
183
Manifestations of Liver Cancer
Dull persistent pain in the RUG, back, or epigastrum Weight loss, anemia, anorexia, weakness Jaundice, bile ducts occluded, ascites, or obstructed portal veins
184
What are some early signs and diagnostic findings of liver cancer
early signs - liver pain (RUQ, epigastric, back) weight loss, anorexia, and anemia enlarged liver (jaundice and ascites) *if cancer is big enough to block portal veins it causes ascites*
185
Labs indicative of Liver Cancer
Increased serum bilirubin Increased serum alkaline phosphatase Increased AST, GGT, Lactic Dehydrogenase Leukocytosis, erythrocytosis, hypercalcemia, hypoglycemia, hypercholesterolemia
186
Serum Alpha Fetoprotein (AFP)
tumor marker elevated in 30-40% of primary liver cancer patients
187
Carcinoembryonic Antigen (CEA)
marker of advanced cancer
188
What are some ways to diagnose Liver Cancer
AFP CEA Imaging - X Ray, MRI, CT, Liver Scan, ultrasound, Arteriography, Laproscopy, PET Liver Biopsy
189
Medical Management of Liver Cancer
Radiation Chemotherapy Percutaneous Biliary Drainage Surgical Management: Lobectomy, Local Ablation, Liver Transplant
190
Percutaneous Biliary Drainage
PALLIATIVE NOT CURATIVE For liver cancer Catheter is inserted under fluoroscopy to bypass obstructed biliary ducts
191
Liver Transplant
total removal of liver and a replacement with a health donor from cadaver, donor, or partial lobe from live donor in same anatomical position is placed
192
When is liver transplant usually used
for life threatening and end stage liver disease with no other treatment available
193
Model of End Stage Liver Disease (MELD) Score
A score that helps caculate the degree of need for a liver transplant based on bilirubin levels, PT time, INR, creatine, and cause of liver disease there are some ethicaly questions sometimes for this in regard to alcohol dependent patients
194
Liver Transplant Preoperative Nursing INterventions
support, education, and encouragement aare provided to help prepare psychologically for the surgery
195
Liver transplant postoperative nursing interventions
monitor for infection, vascular complications, respiratory and liver dysfunction close constant monitoring
196
Other than the patient what are 2 other concerns for liver transplants
caregiver stress ethical dillemmas
197
Liver transplant success depends on ___
immunosuppression
198
What do patients need to understand after a liver transplant
they need lifelong immunosuppressant medications
199
Patient Education for LIver Transplants include...
education about lifelong measures to promote health adhere close to therapeutic regimen with emphasis on immunosuppressive agents education on s/s that indicate problems needing consultation with team emphasize importance of follow up lab tests and apptments with the team