Liver Disease Nursing Study Notes

Liver disease nursing requires understanding a complex cascade of complications — from portal hypertension and varices to hepatic encephalopathy and coagulopathy. This guide focuses specifically on hepatic nursing content: viral hepatitis, cirrhosis and its complications, and acute liver failure — with NCLEX priorities and clinical pharmacology throughout.

Liver Function and Key Lab Values

• ALT: Most specific marker of liver cell damage. Elevated in hepatitis, drug toxicity, ischemic hepatitis
• AST: Less specific — also elevated in muscle injury and cardiac damage. ALT:AST ratio >2 suggests alcoholic liver disease
• Total bilirubin: Normal <1.2 mg/dL. Jaundice clinically apparent when >2–3 mg/dL
• Albumin: Synthesized by liver. Low albumin = chronic liver failure or malnutrition → decreased oncotic pressure → edema and ascites
• PT/INR: Liver synthesizes clotting factors II, V, VII, IX, X. Elevated INR in liver disease = bleeding risk
• Ammonia: Elevated in hepatic encephalopathy (normal <35–65 mcg/dL, lab-dependent)

Viral Hepatitis: A, B, C

Hepatitis A

• Transmission: Fecal-oral (contaminated food or water)
• Course: Acute only — does NOT become chronic. Self-limiting, full recovery in most cases
• Prevention: HAV vaccine, hand hygiene, safe food handling
• Nursing care: Contact precautions if hospitalized, supportive care, avoid alcohol and hepatotoxic drugs, monitor liver enzymes

Hepatitis B

• Transmission: Blood, sexual contact, perinatal
• Course: Can become chronic (5–10% of adults; higher in neonates). Chronic HBV → cirrhosis and hepatocellular carcinoma
• Prevention: HBV vaccine (3-dose series), safe sex, no sharing needles
• Treatment: Acute — supportive. Chronic — antivirals (tenofovir, entecavir)
• Key serology: HBsAg = active infection. Anti-HBs = immunity. HBeAg = high infectivity/active replication

Hepatitis C

• Transmission: Primarily blood (IV drug use, transfusions before 1992, needle-stick)
• Course: 75–85% become chronic. Leading cause of liver transplant in the US. No vaccine available
• Treatment: Direct-acting antivirals (DAAs — sofosbuvir/ledipasvir, glecaprevir/pibrentasvir). Cure rate >95% in 8–12 weeks
• Nursing role: Education on transmission prevention, encourage treatment completion, monitor for drug interactions

Cirrhosis and Its Complications

Cirrhosis is irreversible hepatic fibrosis from chronic inflammation — most commonly from chronic HCV, alcohol use disorder, chronic HBV, or NAFLD. The fibrotic liver cannot synthesize proteins, metabolize toxins, or maintain clotting factor production, leading to a cascade of systemic complications.

Ascites

• Cause: Portal hypertension + low albumin → fluid leaks into peritoneal cavity
• Assessment: Increased abdominal girth (measure at umbilicus), shifting dullness on percussion, fluid wave test, weight gain
• Management: Sodium restriction (<2,000 mg/day), spironolactone (first-line diuretic), furosemide (add if needed), large-volume paracentesis for tense ascites — give IV albumin after large-volume tap (>5 L) to prevent circulatory dysfunction

Esophageal Varices

• Cause: Portal hypertension → collateral vessel dilation in esophagus. High risk of rupture → massive hemorrhage
• Prevention: Non-selective beta-blockers (propranolol, nadolol) reduce portal pressure
• Acute variceal bleed priorities: Large-bore IV × 2, type and crossmatch, octreotide IV (reduces splanchnic blood flow), IV PPI, blood products, NPO, emergent endoscopy (band ligation)

Hepatic Encephalopathy

• Cause: Ammonia buildup → neurotoxic brain effects
• Stages: 1 (mild confusion, personality change) → 2 (asterixis, drowsiness) → 3 (marked confusion, stupor) → 4 (coma)
• Precipitants: GI bleeding, infection, constipation, excess protein, sedatives, dehydration
• Treatment: Lactulose — goal 2–3 soft BMs/day to eliminate ammonia. Rifaximin as adjunct or for prevention
• Nursing: Assess orientation, check for asterixis (“stop traffic” hand position — flapping = positive), monitor safety (fall and aspiration risk)

Spontaneous Bacterial Peritonitis (SBP)

• Signs: Fever, abdominal pain, worsening ascites, new-onset encephalopathy
• Diagnosis: Paracentesis — ascitic WBC >250 PMNs confirms SBP
• Treatment: IV cefotaxime or ceftriaxone × 5 days. IV albumin day 1 and 3 (reduces renal failure risk)

Acute Liver Failure

Rapid loss of liver function in a patient without pre-existing liver disease. Most common cause in the US: acetaminophen overdose. Other causes: viral hepatitis (HAV, HBV), drug/toxin exposure, ischemic hepatitis.

• Key findings: Jaundice, coagulopathy (elevated INR), encephalopathy, hypoglycemia, renal failure (hepatorenal syndrome)
• Acetaminophen overdose treatment: N-acetylcysteine (NAC) — most effective within 8–10 hours but beneficial up to 24+ hours. IV or oral
• Nursing priorities: Monitor blood glucose Q1–4 hours (liver cannot maintain glycogen stores), correct coagulopathy with FFP if bleeding, manage elevated ICP (HOB 30°, avoid stimulation, osmotherapy), frequent mental status assessment, prepare for liver transplant evaluation

NCLEX Tips: Liver Disease Nursing

• Lactulose goal: 2–3 soft BMs/day. Diarrhea = reduce dose; constipation = increase dose
• Hold sedatives and opioids in hepatic encephalopathy — they worsen mental status
• Propranolol for variceal prevention: non-selective beta-blocker reduces portal pressure
• Ascites + fever + abdominal pain = SBP until proven otherwise → diagnostic paracentesis first
• Acetaminophen overdose: NAC is the antidote — give even hours after ingestion
• Hepatitis A = fecal-oral, acute only. Hepatitis B = blood/sex, can be chronic. Hepatitis C = blood-borne, usually chronic, curable with DAAs

For comprehensive NCLEX-formatted notes on gastrointestinal and hepatic conditions — GI bleeding, pancreatitis, IBD, and full liver disease content — see the Lectures Note GI Bundle.

Official Resources and Further Reading

External References

• American Liver Foundation — liver disease education, hepatitis resources, and clinical support tools
• CDC Viral Hepatitis — surveillance data, prevention guidelines, and hepatitis A/B/C clinical information

Related Articles on Lectures Note

• GI Nursing Study Notes — GERD, IBD, GI bleeding, pancreatitis, and ostomy care
• Renal Nursing Study Notes — AKI, CKD, dialysis, and fluid/electrolyte management

Frequently Asked Questions: Liver Disease Nursing

Why do cirrhosis patients bleed easily?

The liver synthesizes most clotting factors (II, V, VII, IX, X, XI). In cirrhosis, impaired synthesis prolongs PT/INR and increases bleeding tendency. Thrombocytopenia from splenomegaly (portal hypertension) compounds the problem.

What is asterixis and how do you assess for it?

Asterixis (flapping tremor) is characteristic of hepatic encephalopathy. Ask the patient to extend their hands with wrists dorsiflexed (“stop traffic” position) and hold it for 15–30 seconds. Asterixis appears as brief involuntary flapping movements — neurotoxic effect of ammonia. Also occurs in uremia and CO2 narcosis.

What triggers hepatic encephalopathy?

Common precipitants: GI bleeding (blood metabolized to ammonia in the gut), infections (especially SBP), constipation, excessive dietary protein, dehydration, and sedative or opioid medications. Identifying and treating the precipitant is as important as treating the encephalopathy itself.

Can patients with cirrhosis take acetaminophen?

In low doses (≤2 g/day), acetaminophen is generally safer than NSAIDs for cirrhosis patients. NSAIDs cause renal impairment and increase GI bleeding risk in this population. Avoid acetaminophen in active alcoholism. Always verify with the provider and document the risk-benefit discussion.