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: Medicine
Which IV fluid should not be used in a patient with head injury - 
Select and explain. 
A. 5% Dextrose, B. Normal saline, C. Dextrose normal saline, D. All of the above
A: 5% Dextrose
Answer: A: 5% Dextrose 
Explanation: None