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: Pharmacology
Which of the following is not given in acute severe digitalis toxicity 
Select and explain. 
A. Potassium, B. Digibind, C. Lignocaine, D. None of these
A: Potassium
Answer: A: Potassium 
Explanation: Hypokalemia precipitates digitalis toxicity but in acute severe digitalis toxicity, there is already hyperkalemia.