Hepatic System Flashcards
What are the major functions of the liver?
Manufactures Bile
Manufactures heparin, prothrombrin, fibrinogen, and albumin
Has Kupffer cells (break down RBCs)
Contains enzymes that break down ammonia to give urea
Activation of Vit D (Ca absorption
Common SxS of hepatic disease
GI symptoms Edema/ascites Dark urine Light colored stools (no bile forming) Right UQP Musculoskeletal pain Hepatic osteodystrophy Jaundice
What are some common skin changes with hepatic disease?
Jaundice
Bruising (clotting factors gone)
Spider angioma
Palmar erythema
What are some neurological involvements with hepatic disease?
Confusion
Sleep disturbance
Muscle tremors
Asterixis (flapping tremor)
What is flapping tremor?
Asterixis (most common neuro involvement with liver failure)
When wrist is in extension, usually bilateral, decreased by intentional muscle involvement
What are some effects aging has on the liver?
Decrease in liver size & weight Longer time for liver functions Liver lab tests still usually normal increase in liver fibrosis Pancrease also begins to fibrosis
What is cirrhosis?
Regenerated nodules separated by bands of fibrous connective tissue
What are some common things clients may show with cirrhosis?
Fatigue weight loss jaundice coagulopathies loss of ability to metabolize drugs hypoalbuminemia Acites
What is the clinical presentation for cirrhosis?
Jaundice Emaciation (abnormally thin or weak) Spider angiomata Gynocomastia Portal hypertension Altered hair distribution Testicular atrophy Palmar erythema Increased risk of infections (leukopenia) Esophageal varices splenomegaly Lower leg edema
What are common lab value findings with cirrhosis?
Increase ALT (alanine aminotransferase) AST (aspartate aminotransferase) LDH (Lactate dehydrogenase) PT (prothrombin time) Decrease BSP dye excretion Albumin
What are normal levels of bilirubin and what levels are high?
1.2 mg/dl is normal
3 mg/dl shows jaundice in eyes
5-6 ml/dl skin becomes yellow, urine turns dark, stool is light colored
What are the 3 types of hyperbilirubinemia?
Unconjugated - prehepatic caused by excess bilirubin formation secondary to hemolysis
Mixed and unconjugated - liver cell necrosis
Conjugated - already conjugated in liver cells may be due to obstruction of bile flow
How do you diagnose and treat jaundice?
Diagnose by bilirubin blood test (can only tell total bilirubin and conjugated bilirubin levels)
Treat the underlying cause
What can cause the skin to turn yellow that isn’t jaundice?
Indulgence of carotene (carrots, pumpkins)
What are some risk factors for hepatitis A (HAV)?
Household contacts or sexual contacts of infected persons
Injections/non-injection illegal drug users
Living in areas with increased rates of HAV
Tattoo inscription with unsterile needles