Invasives GI Practice Exam 2026 – Comprehensive All-In-One Guide for Exam Success!

In evaluating hepatic encephalopathy, a key sign to look for is asterixis, the flapping tremor of the hands. This motor phenomenon arises from impaired cerebral function due to liver failure and ammonia-related neurotoxicity, making it a practical indicator of encephalopathy. To check for it, ask the patient to extend both arms with wrists dorsiflexed and observe for brief, involuntary lapses in posture—the characteristic hands “flap.” While confusion or altered mental status are common in hepatic encephalopathy, asterixis specifically demonstrates the neuromuscular involvement that clinicians test for. Nausea and jaundice reflect broader liver issues and aren’t specific signs of hepatic encephalopathy.