This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc., Subject name: Forensic Medicine
Which is the ideal site to collect blood sample for toxicological analysis during autopsy? 
Select and explain. 
A. Stomach, B. Femoral vein, C. Aorta, D. Heart
B: Femoral vein
Answer: B: Femoral vein 
Explanation: Ans. (B). Femoral veinTo avoid contamination from the gastric contents, blood is always collected from the peripheral vessels preferable femoral vein.