This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Local and Regional Anesthesia), Subject name: Anaesthesia
From which of the following routes absorption of local anaesthetic is maximum? 
Select and explain. 
A. Intercostal, B. Epidural, C. Brachial, D. Caudal
A: Intercostal
Answer: A: Intercostal 
Explanation: Ans. is 'a' i.e., Intercostal According to miller "The greater the blood supply to the area injected, the greater is the systemic absorptionSites of absorption from greatest to least include:-Intrapleural > intercostal > pudendal > caudal > epidural > brachial plexus > infiltration.