EM Command Center / Gastrointestinal & Abdominal • 3 min read • 4 sections

Hepatic Failure & Biliary Emergencies

Comprehensive emergency protocol for hepatic failure and life-threatening biliary tract pathology. Covers King's College criteria for liver transplant, diagnostic paracentesis and albumin resuscitation for spontaneous bacterial peritonitis (SBP), lactulose titration in hepatic encephalopathy, and Charcot triad vs. Reynolds pentad in acute ascending cholangitis.

Resuscitation Quick Ribbon (First 2 Minutes)

High-Acuity

Acute Liver Failure (ALF):Acute hepatic injury + coagulopathy (INR >= 1.5) + encephalopathy in a patient without cirrhosis; evaluate for N-acetylcysteine (NAC) even in non-acetaminophen ALF.

Suspected SBP:Perform diagnostic paracentesis BEFORE starting antibiotics; send fluid for cell count with differential, albumin, total protein, and inoculate blood culture bottles directly at bedside.

SBP diagnosis:Absolute neutrophil count (ANC = WBC * % neutrophils) >= 250 cells/mm3; treat with Ceftriaxone 2 g IV + 25% Albumin 1.5 g/kg IV.

Hepatic Encephalopathy:Start Lactulose 20-30 g (30-45 mL) PO/NG q1-2h until 2 bowel movements, then titrate to 3-4 soft stools/day; add Rifaximin 550 mg PO BID; avoid oversedation.

Acute Cholangitis:Fever + RUQ pain + Jaundice (Charcot) + Shock + Confusion (Reynolds); start Cefepime + Metronidazole or Piperacillin-tazobactam; emergent GI consult for ERCP.

Bottom-Line Clinical Pearl

In spontaneous bacterial peritonitis (ascite PMN >= 250/mm3), administering IV 25% albumin (1.5 g/kg within 6 hours, then 1.0 g/kg on day 3) alongside IV ceftriaxone reduces the incidence of hepatorenal syndrome from 30% to 10% and cuts in-hospital mortality by two-thirds.

1. Acute Liver Failure (ALF) & King's College Criteria

Acute liver failure is defined as rapid hepatic injury characterized by coagulopathy (INR >= 1.5) and mental status changes (hepatic encephalopathy) developing within 26 weeks in a patient without pre-existing cirrhosis:

Etiology Category	King's College Transplant Criteria (Predicts > 80% Mortality Without Transplant)	Specific Antidote / Action
Acetaminophen-Induced ALF	Arterial pH < 7.30 (after resuscitation) OR all three of the following: 1. INR > 6.5 2. Serum Creatinine > 3.4 mg/dL 3. Grade III or IV Encephalopathy	Immediate IV N-Acetylcysteine (NAC) protocol (150 mg/kg load over 1 hr, 50 mg/kg over 4 hrs, 100 mg/kg over 16 hrs). Continue infusion until INR < 2.0 and transaminases resolving.
Non-Acetaminophen ALF (Viral, Drug-Induced, Autoimmune, Wilson)	INR > 6.5 OR any 3 of the following 5 variables: 1. Age < 10 or > 40 years 2. Etiology: idiosyncratic drug, indeterminate, Wilson disease 3. Duration of jaundice before encephalopathy > 7 days 4. INR > 3.5 5. Serum Bilirubin > 17.5 mg/dL	IV NAC (demonstrated to improve transplant-free survival even in non-APAP ALF); contact regional liver transplant coordinator immediately.

2. Spontaneous Bacterial Peritonitis (SBP) Diagnostic Protocol

Any cirrhotic patient with ascites presenting with fever, abdominal pain, altered mental status, unexplained hypotension, or worsening renal/hepatic function must undergo diagnostic paracentesis:

Bedside Ultrasound: Use linear or curvilinear probe to locate largest pocket of fluid away from inferior epigastric vessels and surgical scars. Mark spot.
Ascitic Fluid Analysis: Send for Cell Count + Differential (purple top EDTA tube), Albumin, Total Protein, and Gram Stain. Inoculate 10 mL directly into aerobic and anaerobic blood culture bottles at the bedside (increases culture yield from 40% to > 90%).
Diagnostic Threshold: Absolute Neutrophil Count (ANC = Ascitic WBC * % Neutrophils) >= 250 cells/mm3 confirms SBP.
Secondary Bacterial Peritonitis (Bowel Perforation): Suspect if polymicrobial culture or >= 2 of Runyon's criteria: Total protein > 1 g/dL, Glucose < 50 mg/dL, LDH > upper limit of normal for serum. Secondary peritonitis requires emergent surgical consult.

3. SBP Pharmacotherapy & IV Albumin Protocol

Practice Recommendation

Evidence-Based Albumin Protocol: Sort et al. NEJM trial proved that administering IV 25% Albumin (1.5 g/kg within 6 hours of diagnosis, followed by 1.0 g/kg on Day 3) along with IV Ceftriaxone (2 g IV q24h) significantly prevents hepatorenal syndrome (reduces from 30% to 10%) and cuts in-hospital mortality from 29% to 10%. Strongly indicated in patients with serum creatinine > 1 mg/dL, BUN > 30 mg/dL, or total bilirubin > 4 mg/dL.

4. Acute Ascending Cholangitis (Tokyo Guidelines)

Syndrome / Criteria	Clinical Components	Severity & Urgency	Emergency Interventions
Charcot's Triad	1. Fever / Chills 2. RUQ Abdominal Pain 3. Jaundice (elevated total bilirubin)	Diagnostic of acute biliary tract infection (present in 50-70% of cases)	Blood cultures, broad-spectrum IV antibiotics (Piperacillin-tazobactam 3.375 g IV or Cefepime + Metronidazole), urgent GI consult.
Reynolds' Pentad	Charcot's Triad + 4. Hypotension (Septic Shock) 5. Altered Mental Status (Encephalopathy)	Severe Suppurative Cholangitis (Tokyo Grade III); mortality exceeds 30-50% without decompression	EMERGENCY BILIARY DECOMPRESSION: Emergent ERCP with sphincterotomy and stent placement (or percutaneous transhepatic biliary drainage if ERCP fails).

Board & Shelf Drill 5 Questions • Untimed Tutor Mode

Test Your Hepatic Failure & Biliary Emergencies Clinical Acumen

Directly launch an active-recall practice block from our 8,400+ validated COMLEX Level 1, 2-CE & 3 board question bank with complete explanations.

Related Emergency Protocols & Differentials

Related EM Protocol