This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Flapping tremors are seen in the following conditions except - 
Select and explain. 
A. Uremic encephalopathy, B. Parkinsonism, C. Hepatic encephalopathy, D. Carbon dioxide narcosis
B: Parkinsonism
Answer: B: Parkinsonism 
Explanation: None