Liver Test Questions Flashcards

(73 cards)

1
Q

The majority of perfusion to the liver is delivered via the?

A

Hepatic Portal vein

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2
Q

The Hepatic portal Vein is the venous drainage for which four organs?

A

Stomach, esophagus, sm and lg intestines

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3
Q

What would happen if there was enough pressure in the hepatic portal vein?

A

Portal hypertension and could lead to an upper GI bleed

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4
Q

Where does the liver receive products of RBC breakdown from?

A

The spleen

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5
Q

The liver eliminates ammonia by converting it into?

A

BUN

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6
Q

Ammonia is the waste product of the break down in?

A

Protein

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7
Q

If there was a build up of ammonia, what medications would be normally see given to help the balance the lab value?

A

Lactalose
AND
antibiotics

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8
Q

Why would we see an antibiotic when ammonia gets too high?

A

An antibiotic will kill the gut flora, to control how much is being produced

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9
Q

What is Oncotic pressure?

A

Oncotic pressure, or colloid osmotic pressure, is a form of osmotic pressure exerted by proteins, notably albumin, in a blood vessel’s plasma (blood/liquid) that usually tends to pull water into the circulatory system.

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10
Q

What protein produced by the liver maintains oncotic pressure of our capillaries?

A

Albumin

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11
Q

What happens to oncotic pressure when a pt is in liver failure?

A

Liver produces albumin > LIVER FAILURE OCCURS > less albumin is being produced > decrease in oncotic pressure > ASCITES/ EDEMA

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12
Q

What does the spleen do?

A

Creates and releases platelets

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13
Q

Where is bile stored?

A

Gallbladder

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14
Q

What is iron used for?

A

to make Hgb or RBCS

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15
Q

Bile is needed for?

A

Fat absorption

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16
Q

Hepatic vein

A

nutrient and oxygen poor, takes blood back to right side of heart

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17
Q

portal vein

A

nutrient rich, takes from the spleen, stomach and sm and lg intestines. delivers the nutrients to the liver

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18
Q

proper hepatic

A

oxygen rich

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19
Q

What the fuck is a hepatic lobule?

A

Blood enters the lobules through branches of the portal vein and hepatic artery proper, then flows through sinusoids. YOU HAVE SO MANY OF THESE IN YOUR LIVER

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20
Q

Portal Triad is made up of?

A

Hepatic artery, portal vein, bile duct

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21
Q

Largest gland in your body?

A

Liver bitch

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22
Q

What does the liver do?

A

Storage, protection, metabolism

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23
Q

This is used to make RBCs and HgB in bone marrow?

A

Iron

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24
Q

The is used to make blood clot

A

Vitamin K

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25
This is needed for calcium absorption
Vit D
26
What are Kupffler cells?
Destroy intestinal bacteria
27
How does the liver protect us?
It detoxifies blood! Foreign bodies are attacked!
28
Two ways for us to get cholesterol
Diet and liver production
29
Liver is supposed to convert Bilirubin into
Bile
30
Build of bilirubin leads to?
Jaundice
31
#1 reason for liver failure?
ALCOHOL
32
#2 reason for liver failure
HEP C
33
#3 reason for liver failure?
NASH
34
What is NASH?
Non-alcoholic steatohepatisis
35
Who is more at risk for NASH?
Pt with DM or chronically obese
36
What's another name for NASH?
"fatty liver"
37
Early signs and symptoms
fatigue, may or may not have weight loss (caused by malnutrition), anorexia, vomiting/nausea, RUQ tenderness
38
Late signs and symptoms
GI B, Jaundice, Ascites (third spacing), spontaneous brushing
39
Complications with liver failure:
``` portal hypertension splenomegaly esophageal varices coagulation defects ascites GIB spontaneous bacterial peritonitis Hepatorenal syndrome Hepatic enchephalopathy ```
40
Is cirrhosis reversible?
fucking no it's not.
41
Is acute liver failure reversible?
yes boy it is
42
How many stages of liver failure are there?
4 stages
43
What is liver cirrhosis?
SCARRING | when the liver is unable to carry out excretory function, metabolic function are inadequate to meet demands
44
What labs are we looking at for Liver Cirrhosis?
AST, ALT, LDH, ALK PHOS, Bilirubin, direct and total, urine urobilinogen, albumin, ammonia, PT/INR, platelets, HCT, Hgb
45
Serum Enzymes: AST, ALT, LDH, ALK Phos
elevated
46
Bilirubin: direct, total, urine urobilinogen
elevated
47
Serum Proteins: Albumin
decreased
48
PT/INR:
Prolonged (more time, increase)
49
Ammonia:
Elevated
50
CBC:
decreased
51
What is Ascites?
Collection of fluid in the peritoneal cavity (3rd spacing) due to portal vein hypertension
52
Ascites signs and symptoms
rigid, guarding behavior, abd. pain, warm, edema, yellow (amber) colored urine, hyperkalemia
53
Treatment of Ascites
``` Lasix Aldactone IV albumin low sodium diet stricts I&Os ```
54
What diuretic is potassium sparing?
Aldactone
55
What is Jaundice?
A build up of bilirubin, the livers inability to convert bilirubin to bile
56
What are some different reasons that Jaundice can happen?
Hemolytic, hepatocellular, obstructive
57
Signs and symptoms of Jaundice
yellow eyes, ITCHY, amber urine, pale stools, fatigue, abdominal pain, vomiting
58
Portal Hypertension
Splenomegaly > caput medusae > hemorrhoids > espophageal varices > gastropathy
59
A pt says, "what the hell are these snake like things on my belly" what is it?
Caput Medusae
60
Signs and symptoms or portal hypertension
``` veins that pop out prone to bleeding coffee ground emesis maroon stool iron smelling stool ```
61
Coagulation defects
Liver makes clotting factors, if liver is impaired the clotting factors are impaired. injury > vessel contracts > platelet plug > fibrin clot
62
Hepatic Encephalopathy is?
Increase ammonia | Shunting of portal venous blood back to central circulation, the substances from the intestines are not detoxified
63
Treatment for Hepatic encephalopathy
lactalose | antibiotic
64
Signs and symptoms of Hepatic Encephalopathy
shortened attention lethargy and disorientation somnolence with gross orientation coma
65
Those who have hepatic encephalopathy at at risk for
FALLS
66
Hepatorenal syndrome
decreased renal perfusion
67
Signs and symptoms of hepatorenal syndrome
``` decreased UO, chronic ascites reoccurring GIB coffee ground emesis hypovolemic shock ```
68
At risk: Hemorrhage (congestion)
INTERVENTIONS: Screen for esophageal varices, IV fluids, Drug therapy, endoscopic therapy, Labs TX: Fresh frozen plasma
69
At risk: Fluids (fluid volume excess r/t third spacing/ ascites and peripheral edema
INTERVENTIONS: nutrition therapy, drug therapy, paracentesis, respiratory, position
70
At risk: Hepatic Encephalopathy
INTERVENTIONS: Assessment (confusion, hand tremors), Nutrition therapy, Drug Therapy
71
Transplant
refer if bilirubin increased, clotting increased, creatinine increase
72
Hepatoxic Drugs
Acetaminophen, anti-platelet meds: aspirin, codeine, cyclosporine, valium, oral contraceptives, anti-seizure meds, anti psychotic meds amiodarone
73
IV albumin
Thicker, short/vented tubing