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: Surgery
Lactated Ringer's solution (Hartmann's solution) contains 
all of the following electrolytes (in approximately the
same proportion as human extracellular fluid) EXCEPT 
Select and explain. 
A. Bicarbonate, B. Chloride, C. Potassium, D. Sodium
A: Bicarbonate
Answer: A: Bicarbonate 
Explanation: None