Oral and Maxillofacial Surgery

• Primary site of LA action: Amygdala (limbic system).
• pKa of lignocaine: 7.8.
• Pregnancy supine hypotension: Due to IVC compression.
• Pregnant patient position: Left lateral decubitus.
• Corticosteroids in pregnancy: FDA Category C.
• Ketamine action site: Thalamocortical junction.
• Atracurium & cisatracurium metabolism: Hoffman elimination.
• Neuralgia treatment: Carbamazepine arrests Na⁺ channels in inactive state.