Which symptom is often associated with acute liver failure in patients?

Jaundice is a hallmark symptom of acute liver failure. It results from the accumulation of bilirubin in the bloodstream due to the liver's inability to process and excrete this substance effectively. In acute liver failure, the liver's normal functions are drastically reduced or halted, leading to elevated levels of bilirubin, which can cause the skin and the whites of the eyes to take on a yellowish hue. This symptom is particularly significant as it helps in the early recognition of liver dysfunction and indicates severe underlying liver damage or disease.

The other symptoms listed do not typically align with the presentation of acute liver failure. Increased appetite, for instance, is generally not associated with liver failure, as patients often experience anorexia or decreased appetite. Decreased blood pressure may occur in certain conditions, but it is not a direct or consistent symptom of acute liver failure. Hyperactivity is also not associated with liver failure; instead, patients may experience confusion or decreased consciousness due to the accumulation of toxins that the liver would normally help to clear. Hence, jaundice remains the most indicative symptom linked to acute liver dysfunction.