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
Hyperkalemia with no ECG finding. The drug that should not be used is - 
Select and explain. 
A. Sodium bicarbonate, B. Calcium gluconate, C. Glucose with insulin, D. Resins
B: Calcium gluconate
Answer: B: Calcium gluconate 
Explanation: calcium gluconate immediately antagonises the cardiac effects of hyperkalemia, whereas the others are used to correct hyperkalemia. (reference : harrisons principles of internal medicine,19E page- 312)