Diseases Of The Liver And Biliary System IM Plat Flashcards
Basic patterns of liver disease
Hepatocellular
Cholestatic
Mixed
Hepatocellular examples
Viral hepatitis
Alcoholic liver disease
Cholestatic
Obstructive biliary diseases
Mixed
Drug induced liver diseases
Major risk factors for liver diseases
Alcohol use Medications - herbal compounds Birth control pills, OTC meds Personal habits Sexual activity Travel Exposure to jaundiced or other high-risk persons Injection drug use Recent surgery Remote or recent transfusion with blood and blood products Occupation Accidental exposure to blood or needle stick injury Familial history of liver disease
Most common and most characteristic symptom of liver disease
Fatigue
Hallmark of liver disease and the most reliable marker of severity
Jaundice
Constitutional symptoms of liver disease
Fatigue poor appetite Weakness Nausea Malaise
Liver-specific symptoms
Jaundice,dark urine, light stools, itching, abdominal pain
Bloating
Signs of hepatic disease(12)
Icterus Palmar erythema Spider angiomata Hepatomegaly Splenomegaly Ascites Peripheral edema Hepatic encephalopathy Fetor hepaticus Umbilical hernia Caput medusa Hyperestrogenemia (for males)- gynecomastia, testicular atrophy, loss of male pattern hair distribution
Superficial tortuous arterioles seen on the arms, face, upper torso, fill outwards from the center
Spider angiomata
Icterus can be noted on the
Sclerae, skin
Mucous membrane below the tongue
The most reliable physical finding in examining the liver
Hepatic tenderness
Hepatomegaly is seen in
Venoocclusive disease, infiltrative disorders, hepatic malignancy, alcohol hepatitis
Subtle significant finding in liver disease and portal hypertension
Splenomegaly
Ascites is best appreciated by
percussing for Shifting dullness
How much volume of ascitic fluid should be present before dullness is appreciated
~1500 mL
Contributing factors to peripheral edema in liver disease
Hypoalbuminemia, venous insufficiency
Heart failure
Medications
First signs of hepatic encephalopathy
Change in sleep patterns Change in personality Irritability Mental dullness Confusion Disorientation Stupor Eventually coma supervene
Acute liver failure neurologic signs
Excitability , mania
Slightly sweet, ammonia-like odor in patients especially if there is portovenous shunting of blood
Fetor hepaticus
Umbilical hernia develops in liver disease due to
Increased intraabdominal pressures from ascites
Appearance of distended and engorged superficial epgastric veins which are seen radiating from the umbilicus across the abdomen
Caput medusae
Golden-brown copper pigment deposited in the periphery of the cornea
Kayser-fleischer rings
Kayser-fleischer rings are found in
Wilson’s disease
Is a condition in which one or more fingers become permanently bent in a flexed position
Dupuytren’s contracture
Dupuytren’s contracture and parotiod enlargement is found in
Alcoholic liver disease
Slate-gray pigmentation of skin is found in
Hemochromatosis
Also called as bronze diabetes
Hemochromatosis - because it can lead to darkening of the skin and hyperglycemia
Tests based on detoxification and excretory functions
Serum bilirubin
Aminotransferases
Enzymes that reflect cholestatsis
Alkaline phosphatase (ALP)
5’ Nucleotidase (5NT)
Y- glutamyl transpeptidase (GGT)
Tests that measure biosynthetic function of the liver
Serum albumin
Serum globulins
presence of icterus
Total serum bilirubin is at least
3 mg/dL
Unconjugated bilirubinemia
Indirect
Conjugated bilirubinemia
Direct