This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fluid and electrolytes, Subject name: Medicine
Low serum copper is seen in all Except 
Select and explain. 
A. Aceruloplasminemia, B. Menke disease, C. Wilson disease, D. Primary biliary cirrhosis
D: Primary biliary cirrhosis
Answer: D: Primary biliary cirrhosis 
Explanation: In primary biliary cirrhosis (PBC) liver copper retention occurs as a complication of cholestasis. Fifty-four had increased liver copper concentrations. Liver cell synthetic function was well preserved. All the patients had normal prothrombin times, and only two had subnormal serum albumin concentrations. Ref Davidson 23rd edition pg 344