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What is Fastest to slowest route of absorption of local anaesthetic is? and explain in detail?
According, the rate of systemic absorption is greatest with intercostal nerve blocks followed by caudal, lumbar epidural, brachial plexus block femoral and sciatic nerve blocks. Sequence of systemic absorption IV > Tracheal > Intercostal block > Para cervical block > Caudal > Lumbar epidural > Brachial Plexus > Sciatic > Subcutaneous.