Cholinesterase metabolizes following except –: (A) Tetracaine, (B) Procaine, (C) Acetylcholine, (D) Bupivacaine
Answer is D. Ester local anesthetics (like procaine & tetracaine) are metabolized by cholinesterase (pseudocholinesterase). Amide local anesthetics (Bupivacaine) are metabolized in liver (not by pseudocholinesterase).
Acetylcholine is metabolized by cholinesterase (acetylcholinesterase).