Question 50:
What is the rate of mortality in acute liver failure?
The correct answer is (D) Up to 90%.
Acute liver failure (ALF) carries a high mortality rate, historically up to 90% without transplant, though modern interventions like liver transplantation have lowered it to 30-50% in many cases.
Option Breakdown
(A) 10% – 20%
This low range applies to milder liver injuries or post-transplant survival, not untreated ALF, where rapid multiorgan failure drives higher death rates.
(B) 30% – 40%
Some studies report this for adults with transplantation access (e.g., 30% death without transplant), but it underestimates historical or resource-limited settings.
(C) 60% – 70%
This fits certain etiologies like indeterminate ALF or high MELD scores, with encephalopathy grade 3-4 showing ~60% mortality, yet overall peaks higher without intervention.
(D) Up to 90%
Pre-transplant era mortality reached 80-90%; even now, developing countries report 26-84%, confirming “up to 90%” as the broadest accurate descriptor for exams.
Introduction to Acute Liver Failure Mortality Rate
The acute liver failure mortality rate can climb up to 90% due to coagulopathy, encephalopathy, and multiorgan failure in untreated cases. Critical for GATE Life Sciences, this question tests prognosis knowledge across ranges.
Factors Influencing Mortality
Etiologies like acetaminophen yield ~60% survival, while indeterminate or drug-induced ALF drop to 25%, pushing overall rates to 47% at 3 months without transplant. Liver transplantation cuts death to ~20% post-op.
Spontaneous recovery occurs in 45%, but high-risk scores (MELD >30) predict 70-90% fatality.
Mortality Rates Comparison Table
| Range | Context/Applicability | Typical Scenario |
|---|---|---|
| 10% – 20% | Post-transplant or mild cases | Favorable etiologies |
| 30% – 40% | US adults with access to care | Overall with intervention |
| 60% – 70% | Severe encephalopathy | High MELD/indeterminate |
| Up to 90% | Historical/untreated ALF | Exam’s broadest match |
This table demystifies acute liver failure mortality rate for competitive exams.
Exam Relevance for Life Sciences
Grasping ALF prognosis sharpens hepatology sections, linking to hypoalbuminemia from prior queries on liver function.
