Cirrhosis & Its Complications
High-yield Verified · Sep 2026Cirrhosis is fibrosis and nodule formation of the liver from chronic injury — scarring that destroys the liver’s normal lobular architecture and, with it, the organ’s synthetic and clearance functions.
One disorder, four exams’ worth of complications: portal hypertension explains varices, ascites, splenomegaly, and encephalopathy — and the failing liver itself explains the bleeding, the jaundice, and the drug sensitivity.
What’s going wrong in the body
The normal physiology, where it fails, and why the body’s compensation backfires.
01 Scar tissue replaces the factory
Chronic liver disease is a staged march: hepatitis or steatosis → fibrosis → cirrhosis → risk of hepatocellular carcinoma. The scarring itself has a cellular story: chronic injury and inflammatory cytokines activate the hepatic stellate cells — normally quiet vitamin-A-storing cells — which transform into myofibroblasts and lay down collagen. The sinusoidal endothelial cells lose their fenestrations (the sieve-like pores that let blood and hepatocytes exchange freely), and Kupffer cells release harmful mediators. The result is a hard, nodular organ where a soft, open-circulation one used to be.
Compensated cirrhosis is often silent — found incidentally on labs or imaging. Decompensation is the appearance of any of five events: ascites, jaundice, hepatic encephalopathy, variceal bleeding, or hepatocellular carcinoma. The distinction is the prognosis: 10-year survival is roughly 47% while compensated but falls to about 16% after a decompensating event. Everything the nurse does for this patient — the surveillance, the teaching, the precipitant-hunting — is aimed at delaying that crossing.
02 One pressure, four consequences — portal hypertension
All portal-vein blood must pass through the liver, and the scarred liver resists it — two ways at once. Inside the liver, dysregulated sinusoidal and stellate cells (more endothelin-1, less nitric oxide locally) constrict the sinusoids and raise resistance. Outside the liver, nitric oxide floods the splanchnic bed, dilating it and pouring more blood into the portal system — a hyperdynamic circulation feeding a blocked drain.
The pressure is measured as the hepatic venous pressure gradient (HVPG): normal is ≤ 5 mm Hg, portal hypertension begins at ≥ 6, becomes clinically significant at ≥ 10, and at ≥ 12 mm Hg life-threatening bleeding and other complications become likely. Trapped blood detours through portosystemic collaterals at four classic sites: the distal esophagus and stomach (gastroesophageal varices), the umbilicus (caput medusae), the retroperitoneum, and the anorectal region. The same pressure congests the spleen (splenomegaly, which sequesters platelets and white cells), drives ascites, and — because shunted blood bypasses the liver — delivers unfiltered toxins like ammonia straight to the brain.
03 The failing factory: synthesis down, clearance down
The liver’s lab abnormalities sort cleanly into two failures. Synthesis fails: the liver makes albumin and clotting factors, so cirrhosis brings low albumin (feeding ascites and edema through lost oncotic pressure) and a prolonged PT/INR with easy bruising and GI bleeding. PT, albumin, and bilirubin — not the aminotransferases — are the true indicators of hepatic synthetic function.
Clearance fails: ammonia is no longer converted to urea and accumulates (hepatic encephalopathy), bilirubin accumulates (jaundice, with pale stools), and drug metabolism falls — cirrhosis patients have an extra sensitivity to medicines, which is why sedatives, NSAIDs, and unreviewed OTC products are so dangerous in this population. This two-column split is the fastest way to organize the whole disorder: every finding on this page belongs to synthesis, clearance, or pressure.
04 Ammonia and the brain — hepatic encephalopathy
Colonic bacteria and mucosal enzymes break dietary protein down to ammonia; the healthy liver clears it through the urea cycle. In cirrhosis, hepatocellular failure plus portosystemic shunting let ammonia bypass the liver entirely. In the brain, astrocytes convert ammonia and glutamate to glutamine — an osmolyte — so the astrocytes swell: cerebral edema, oxidative stress, and neurotransmitter imbalance. Clinically that spectrum is graded on the West Haven scale: subtle attention loss (grade 1) → lethargy, mild disorientation, personality change (grade 2) → somnolence and gross disorientation (grade 3) → coma (grade 4). Asterixis — the flapping tremor with arms extended and hands dorsiflexed — appears in the intermediate grades.
Encephalopathy rarely appears out of nowhere; something precipitates it, and the precipitant list is the exam list: GI bleeding (blood in the gut is a giant protein load), infection including SBP, constipation, dehydration (over-diuresis, vomiting, large paracentesis), electrolyte imbalance (hypokalemia, hyponatremia), sedatives — benzodiazepines and opioids, NSAIDs, kidney dysfunction, TIPS, and alcohol. The treatment logic follows the mechanism: lactulose is metabolized by colonic bacteria to acids, and the acidic colon converts ammonia (NH₃) to ammonium (NH₄⁺) — an ionized form that cannot cross membranes — trapping it in the gut and drawing more in from the blood, while the osmotic effect expels it. That is why the dose is titrated to 2–3 soft stools per day, not to comfort.
Causes & risk factors
Modifiable factors are teaching targets — the patient can act on them.
Signs & symptoms
Each finding tied to the mechanism that produces it — and the triage it calls for.
Diagnostics
Complications
Medications for this condition
Why each class is prescribed here — every card links to its full pharmacology page.
Ascites is aldosterone’s disease: splanchnic vasodilation fools the kidneys into RAAS activation, so therapy is spironolactone-based — the aldosterone antagonist is the foundation, with furosemide added in a 100 mg : 40 mg ratio. First-line together with the 2,000 mg sodium restriction. Monitor weight, electrolytes (K⁺ moves both ways), BUN/creatinine — because over-diuresis dehydrates the patient into encephalopathy.
Lactulose here is not for constipation — it is an ammonia trap. Colonic bacteria turn it into acids; the acidic colon converts NH₃ to non-absorbable NH₄⁺ and expels it. Titrate to 2–3 soft stools/day: fewer means ammonia stays, more means dehydration — itself an encephalopathy precipitant. Rifaximin is added when lactulose alone is not enough.
Must be nonselective (propranolol, nadolol, carvedilol — carvedilol preferred): the target is portal pressure, not blood pressure — lower cardiac output means less splanchnic flow and a lower HVPG. Primary prophylaxis cuts first-bleed risk from ≈ 25% to 15%; after a bleed, the beta-blocker is the modality that reduces mortality (banding alone does not).
Beyond medications
- Absolute alcohol abstinence — plus vaccination against hepatitis A and B, influenza, pneumococcus, and shingles; an injured liver cannot afford a second hit.
- Sodium 2,000 mg (88 mEq)/day for ascites; fluids are restricted only if the provider orders it — sodium, not water, is the primary target.
- Nutrition — protein is NOT restricted: ≈ 1.2–1.5 g/kg/day protein and 35–40 kcal/kg/day, as small frequent meals plus a bedtime snack, because the diseased liver stores energy poorly. Avoid excess vitamin A; avoid salt substitutes if kidney disease coexists (potassium load).
- Endoscopic variceal ligation (banding) — preferred over sclerotherapy, both for active bleeding and prophylactically for medium-to-large varices; TIPS is second-line for refractory bleeding or ascites but precipitates encephalopathy in 30–50%.
- Surveillance — HCC ultrasound at least every 6 months; screening EGD every 2–3 years (compensated) or yearly (decompensated); liver stiffness < 20 kPa with platelets > 150,000 can forgo screening endoscopy.
- Liver transplantation for decompensated cirrhosis unresponsive to medical management — ≈ 85% 1-year survival; MELD 3.0 sets waitlist priority.
Nursing considerations
The RN-specific layer — each action paired with the reason it matters.
How a real nurse thinks
The clinical-judgment loop, worked for a typical presentation — reasoning, not reference.
- 1 Recognize cues
The cues that matter: melena in a portal-hypertension patient, a hemoglobin that has fallen from 11.2 to 8.4, HR 108 with BP 96/58, new disorientation with asterixis, three days without a stool, and a K⁺ of 3.3 on furosemide. The mildly elevated temperature and stable SpO₂ are background — though in an ascites patient, any fever would join the headline list as possible SBP.
- 2 Analyze cues
One thread connects everything: a GI bleed — likely variceal, given the cirrhosis and portal hypertension — has been quietly running. Blood in the gut is a massive protein load; colonic bacteria convert it to ammonia, the shunted liver can’t clear it, and the result is the confusion and asterixis (West Haven grade 2–3). The three days of constipation and the hypokalemia are two more named precipitants stacking on top. And the hemoglobin may still understate the loss — it takes 6–24 hours to equilibrate during active bleeding.
- 3 Prioritize
Circulation first: an actively bleeding cirrhotic trending tachycardic and hypotensive outranks everything, and the encephalopathy is a consequence of that bleed — treating the cause and the ammonia can proceed in parallel. Sequence: secure IV access → provider notification (bleed + encephalopathy + K⁺ in one SBAR) → lactulose and monitoring. The confusion also makes him an aspiration and safety risk, so nothing by mouth until his swallowing and sensorium are assessed against each dose.
- 4 Generate solutions
Establish/verify two large-bore (≥ 18-gauge) IVs; anticipate the variceal bundle — restrictive transfusion only if Hgb < 7 g/dL, IV octreotide, prophylactic ceftriaxone, and EGD within 12 hours. Give the ordered lactulose and titrate to 2–3 soft stools/day. Clarify the 2100 diuretics with the provider — diuresing a hypotensive, bleeding, hypokalemic patient risks worsening both the shock and the encephalopathy. Plan serial LOC/asterixis checks, and flag that no sedatives should be given for his nighttime restlessness.
- 5 Take action
Secure the second IV and deliver one SBAR: "Melena on admission, Hgb 8.4 from 11.2, HR 108, BP 96/58, new grade 2–3 encephalopathy with asterixis, K⁺ 3.3, no stool in 3 days. Anticipating octreotide, ceftriaxone, and EGD; requesting direction on tonight’s spironolactone, furosemide, and propranolol, and potassium replacement." Give the lactulose, start the stool count, and re-check neuro status hourly. The trap is treating the confusion as the whole problem — or sedating it — while the bleed that caused it keeps running.
- 6 Evaluate
Success looks like: heart rate and blood pressure stabilizing, hemoglobin holding after the EGD treats the source, 2–3 soft stools by tomorrow with the patient re-orienting and the asterixis fading, potassium replaced, and no fever or abdominal tenderness developing (the ceftriaxone is there because bleeding cirrhotics are set up for SBP). Watery diarrhea, deepening lethargy, recurrent melena, or a new fever re-escalates immediately.
Scenario — you’re the nurse
Work each question before revealing the answer. Rationales explain the wrong options too.
A 58-year-old man with alcohol-associated cirrhosis (Child-Pugh B) and known ascites, admitted for confusion. Home meds: spironolactone 100 mg + furosemide 40 mg daily, propranolol. His wife reports two days of increasing confusion — "he sleeps all day and wanders at night" — and no bowel movement in three days. While settling him, you note a black, tarry stool.
Q1 Select all that apply On the admission assessment, which findings require immediate follow-up? Select all that apply. - A. Black, tarry stool noted on admission
- B. New disorientation with asterixis
- C. Spider nevi across the chest and shoulders
- D. Potassium 3.3 mEq/L
- E. Temperature 37.2 °C (99.0 °F)
Reveal answer & rationale
Q2 Multiple choice The nurse understands that the best explanation connecting the black stools to the new confusion is: - A. Blood loss has lowered cerebral perfusion, causing hypoxic confusion
- B. Blood in the GI tract is digested as a protein load, producing ammonia the scarred, shunted liver cannot clear
- C. Melena indicates alcohol relapse, and the confusion is early withdrawal
- D. The dark stools are an expected effect of spironolactone therapy
Reveal answer & rationale
Q3 Put in order Put the nurse’s first four actions in priority order: - A. Notify the provider with a single SBAR covering the bleed, the encephalopathy, and the K⁺ of 3.3
- B. Establish/verify two large-bore (≥ 18-gauge) IV lines
- C. Administer the ordered lactulose and begin the stool count
- D. Document the assessment findings
Reveal answer & rationale
Q4 Multiple choice The patient’s wife asks, "Why are you giving him a laxative? Diarrhea is the last thing he needs." The nurse’s best response explains that lactulose is given to: - A. Empty the bowel before tomorrow’s endoscopy
- B. Acidify the colon so ammonia is converted to a form that cannot be absorbed, then expelled — dosed to 2–3 soft stools a day
- C. Prevent the constipation that his pain medications will cause
- D. Produce as many stools as possible until his confusion resolves
Reveal answer & rationale
Q5 Multiple choice Which finding on tomorrow evening’s assessment best indicates the plan is working? - A. Three soft stools today, oriented to person and place, asterixis barely elicitable
- B. The ammonia level has normalized, though he remains lethargic and disoriented
- C. He slept soundly all afternoon after the night shift gave him a dose of a sedative for restlessness
- D. Six large watery stools since morning
Reveal answer & rationale
Common questions
What causes cirrhosis & its complications?
What are the early signs of cirrhosis & its complications?
Which findings should a nurse report immediately in cirrhosis & its complications?
Do patients with cirrhosis need a low-protein diet?
Why does a cirrhosis patient with normal blood pressure take a beta-blocker?
What is the difference between compensated and decompensated cirrhosis?
Sources
- OPTN/SRTR 2023 Annual Data Report: Liver — OPTN/SRTR (HRSA) · Am J Transplant
- Cirrhosis — NIDDK — NIH / NIDDK
- Hepatic Cirrhosis — StatPearls — StatPearls (NCBI Bookshelf)
- Esophageal Varices — StatPearls — StatPearls (NCBI Bookshelf)
- Ascites — StatPearls — StatPearls (NCBI Bookshelf)
- Hepatic Encephalopathy — StatPearls — StatPearls (NCBI Bookshelf)
- Lactulose — StatPearls — StatPearls (NCBI Bookshelf)
- Portal Hypertension — StatPearls — StatPearls (NCBI Bookshelf)
- Paracentesis — StatPearls — StatPearls (NCBI Bookshelf)
- Chronic Liver Disease — StatPearls — StatPearls (NCBI Bookshelf)
Reviewed by Hae Suk Lee, RN
Educational summary for nursing students. Scenarios are fictional teaching cases. Always verify against current guidelines and your institution's protocols before acting in practice. Not medical advice.