Hepatic and Biliary Systems Flashcards
The Following are the functions for what organ?
- Synthesize glucose
- stores glucose
- synthesizes cholesterol and proteins into hormones and vitamins
- metabolizes fat, proteins and carbs
- metabolizes drugs via CYP-540
- Detoxifies blood
- involved in acute phase of immune support
- Processs HGB and stores iron
- synthesizes coagulations factors
- Aids in volume control as a blood resevoir
Liver
What organ/system is impacted by liver function?
- All
- Liver dysfunction can lead to multi-organ failure
How many segments are in the liver?
- 8 segments
What seperates the Rt and Lt lobes of the Liver?
- Falciform Ligmament
The _____ vein and _____ artery branch into each segment of the Liver?
- Portal Vein
- Hepatic Artery
Name (3) Hepatic veins that empty into IVC
- Right Hepatic V
- Middle Hepatic V
- Left Hepatic V
The____ _____ of the liver travels along portal veins?
Bile ducts
Bile drains through the Hepatic Duct into the ________ and ______ Bile Duct.
- Gallbladder (GB)
- Common Bile Duct (CBD)
Bile enters duodenum via ______ ______ _________.
- Ampulla of Vater
The liver receives _% of CO, or _-__ L/min.
- 25%
- 1.25 - 1.5 L/min
Which organ receives the highest CO of all the organs?
- Liver
What vein arises from the splenic vein and superior mesenteric vein?
Portal Vein
The _______ vein provides 75% of Hepatic blood and is _________________ by the GI organs, pancreas and spleen.
- Portal Vein
- deoxygenated
The __________ artery provides 25% of Hepatic blood flow and branches off the _________.
- Hepatic artery
- Branches off the aorta
Liver O2 delivery
- 50% Portal Vein (deoxygenated)
- 50% via Hepatic artery
Hepatic Artery blood flow is ________ r/t portal venous blood flow.
inversely
hepatic blood flow is _________ and hepatic artery dilates in reponse to ____ portal venous flow.
- Autoregulated
- low
Portal Venous pressure reflects _______ _______ tone and _______ pressure
- splanchnic arterial tone
- intrahepatic pressure
Portal Hypertension (↑Portal venous pressure) causes blood to back up into _________ circulation and causes ________ and _________ varices
- systemic
- esophageal and gastric varices
Hepatic Venous Pressure Gradient (HVPG) 1-5 mmHg
- Normal portal venous pressure
Hepatic Venous Pressure Gradient (HVPG) >10
- Portal HTN
- cirrhosis, esophageal varices
Hepatic Venous Pressure Gradient (HVPG) >12
- Variceal Rupture
Below are Risk Factors for _______________.
* Family hx
* Heavy ETOH
* Lifestyles
* DM
* Obesisty
* Illicit Drug use
* Multiple Partners
* Tattoos
* Transfusions
Liver Dysfunction
These Physical Exam findings indicate__________.
* Pruritis
* jaundice
* Ascites
* Asterixis (flapping tremor)
* Hepatomegaly
* Splenomegaly
* Spider nevi
Active Liver Problems
Hepato-biliary Functions Tests Labs
- BMP, CBC
- PT/INR
- AST
- ALT
- Bilirubin
- Alkaline Phosphatase
- GGT
What is the most liver specific enzyme test?
ALT
Imaging to Evaluate hepato-biliary Function
- Ultrasound
- Doppler U/S
- CT
- MRI
Acute Liver Failure, Alcoholic Liver Disease and Non-Alcoholic Liver Disease are all causes of ____________.
Hepatocellular Injury
Labs that indicate Hepatocellular Injury
↑AST/ALT
AST/ALT will be elevated ____ x in Acute Liver Failure (ALF)
- 25x
In Alcoholic Liver dz, ___:___ ration is 2:1
- AST: ALT ratio is 2:1
Hepatobiliary disease: Reduced Synthetic Function labs
- ↓Albumin
- ↑PT/INR
Hepatobiliary disease: Cholestasis labs
- ↑Alk Phosphatase
- ↑GGT
- ↑bilirubin
_________________ is caused by hepatocytes secreting bile through ducts, into common hepatic duct and into Gallbladder and Common bile duct
Cholelithiases “Gallstones”
The _________ stores bile to deliver during meals
____________ duct secretes bile directly into duodenum.
- Gallbladder
- Common Bile Duct
Obesity, high cholesterol, DM, pregnancy, female, and family history are all common risk factors of ______________.
Cholethiasis
Symptoms of Cholelithiasis
- RUQ pain – referred to shoulders
- N/V, indigestion
- Fever (acute obstructon)
IVF, antibiotics, pain management and Lap Cholecystectomy are treatment for _______________.
Choleliathiasis
________________ is a stone obstructions ofthe common bile duct that can lead to biliary colic.
- Choledocolithiasis
_____________ is inflammation of bile duct system.
Cholangitis
Initial Symptoms of Choledocolithiasis
- N/V
- Cramping
- RUQ pain
Symptoms of Cholangitis
- Fever
- rigors
- jaundice
Cholangitis Treatment
- Endoscopic removal of stone via ERCP
Below is the surgical overview for what procedure?
* Endoscopist threads guidewire through Sphincter of Oddi, into Ampulla of Vater to retrieve stone from pancreatic duct or CBD
* GA, usually prone w/left tilt (tape ETT to left)
* Glucagon may be required in the event of Oddi Spasm
- Endoscopic Retrograde Cholangiopancreatography
ERCP patient and ETT postioning
- pt is proned, head to the right
- Tape ETT to left
Name (3) types of Hyperbilirubinemia
- Bilirubin
- Unconjugated (indirect) hyperbilirubinemia
- Conjugated (direct) hyperbilirubinemia
_________ is the end product of heme-breakdown
- Bilirubin
_____________ hyperbilirubinemia is the imbalance between bilirubin synthesis and conjugation.
_____________ hyperbilirubinemia is caused by an obstruction, causing reflux of conjugated bilirubin into the circulation
Unconjugated (indirect)
Conjugated (direct)
Name (5) types of Viral Hepatitis
- A
- B
- C
- D
- E
Name the (2) Viral Hepatitis that are more chronic
- B
- C
Name the most common viral hepatitis requiring liver tranplant in the US.
- HCV
Name the Top indicator for liver transplants in US
Alcoholic Liver Disease (ALD)
Cirrhosis: Alcohol Liver Disease
- Most common cause of cirrhosis
- underreported d/t stigma
- intiatlly asymptomatic
Treatment of Alcoholic Liver Disease includes ________ , management of symptoms, transfusion for platelets < ___________ and a liver ________.
- Abstinence
- < 50,000
- Liver transplant
Symptoms of _____________ Liver Disease include:
* Malnutrition
* muscle wasting
* Parotid gland hypertrophy
* Jaundice
* thrombocytopenia
* ascites
* Hepatosplenomegaly
* Pedal Edema
Alcoholic
When can ETOH withdrawal after someone stops drinking?
- 24-72 hr after stopping
Alcoholic Liver Disease: Lab Values
- ↑Mean corpuscular volume (MCV)
- ↑Liver enzymes
- ↑ɣ-glutamyl-transferase (GGT)
- ↑Bilirubin
- Blood ethanol (acute intox)
____________ Fatty Liver Disease is on the rise in the US and is diagnosied when hepatocytes contain > ___% fat
*Non-Alcoholic
* > 5% fat
Name (3) disease processes that Non-Alcoholic Fatty Liver Disease progresses to
- NASH
- Cirrhosis
- Hepatocellular carcinoma
Besides Alcohol Liver Disese, what (2) disease processes are becoming additional causes of liver transplants in the US?
- Non-Alcoholic Fatty Liver Disease (NAFLD)
- Non-Alcoholic Steatohepatitis (NASH)
______ _______ is the gold standard of diagnosis of Non-Alcoholic Fatty Liver Disease, in addition to imaging and histology.
- Liver Biopsy (gold standard)