This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
The recommended fluid for initial fluid challenge in a trauma victim in shock is 
Select and explain. 
A. 5% dextrose, B. 10% dextrose, C. Dextrose normal saline, D. Hamann's solution
D: Hamann's solution
Answer: D: Hamann's solution 
Explanation: Because hamanns solution (RL) is more isotonic to blood 5%dextrose is isotonic, but as dextrose can move intracellularly, 5%D doesnt increase intravascular volume.