This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Pediatrics
A 3 year old girl with severe dehydration. What is the best step in case of failure to obtain IV access ____________ 
Select and explain. 
A. Subclan central line, B. Introsseous, C. Jugular cut down, D. Femoral vein
B: Introsseous
Answer: B: Introsseous 
Explanation: Increased fluids and dietary changes are the main treatment for diarrhea. Note: One loose stool can mean nothing. Don&;t sta dietary changes until your child has had several loose stools. Encourage your child to drink lots of fluids to prevent dehydration. Reference: GHAI Essential pediatrics, 8th edition Nutrition Chapter