This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Trauma, Subject name: Surgery
Patient in shock. IV cannulation not possible, intraosseous line for IVF shock be done within: 
Select and explain. 
A. 1 minute, B. 1.5 minutes, C. 2 minutes, D. 2.5 minutes
B: 1.5 minutes
Answer: B: 1.5 minutes 
Explanation: Ans. (b) 1.5 minutes* In patients on shock it is difficult to get peripheral IV access. So immediately get a central venous line or intraosseous line in 90 seconds.