Asterixis is associated with hepatic encephalopathy. Which stage is typically linked to this finding?

Asterixis is associated with hepatic encephalopathy. Which stage is typically linked to this finding?

• A. Stage II
• B. Stage III
• C. Early stage I
• D. Stage IV

Answer: (A)

Asterixis signals overt hepatic encephalopathy, a state of cerebral dysfunction from liver failure. As encephalopathy progresses, mental status and motor changes appear in a characteristic sequence. In the commonly used staging, Stage II is where patients show noticeable lethargy, disorientation for time, and personality changes, and this is when asterixis is typically observed. This sign reflects ammonia and other toxins affecting brain function, producing the brief, flapping movements of the hands. In earlier stage I, symptoms are milder and motor signs like asterixis are less likely; in later stages III and IV, confusion can be profound or the patient is comatose, and the reliability of asterixis decreases. Therefore, the finding is most commonly linked to Stage II.

Asterixis signals overt hepatic encephalopathy, a state of cerebral dysfunction from liver failure. As encephalopathy progresses, mental status and motor changes appear in a characteristic sequence. In the commonly used staging, Stage II is where patients show noticeable lethargy, disorientation for time, and personality changes, and this is when asterixis is typically observed. This sign reflects ammonia and other toxins affecting brain function, producing the brief, flapping movements of the hands. In earlier stage I, symptoms are milder and motor signs like asterixis are less likely; in later stages III and IV, confusion can be profound or the patient is comatose, and the reliability of asterixis decreases. Therefore, the finding is most commonly linked to Stage II.