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: Anaesthesia
Maximum dose of plain lignocaine (in mg) – 
Select and explain. 
A. 300, B. 500, C. 700, D. 1000
A: 300
Answer: A: 300 
Explanation: Maximum safe dose of plain lidocaine → 300 mg (4.5 mg/kg).
Maximum safe dose of lidocaine with epinephrine → 500 mg (7 mg/kg).