This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Biochemistry
Acquired porphyria is due to the which of the following: 
Select and explain. 
A. Mercury toxicity, B. Lead poisoning, C. Copper deficiency, D. Selenium toxicity
B: Lead poisoning
Answer: B: Lead poisoning 
Explanation: Porphyria can be either inherited or acquired. Causes of acquired porphyria: Lead poisoning Alcoholism Hepatitis C infection Lead induced acquired porphyria is known as Plumboporphyria.