Q: Beside proper analgesia, what is the the other advantage of giving local anesthesia before inserting arterial catheter for invasive monitoring?


Answer: Beside relief of pain, major advantage of local analgesia during arterial catheter insertion is reduction of vasospasm.



Reference:

Guidelines for the measurement of respiratory function. Recommendations of the British Thoracic Society and the Association of Respiratory Technicians and Physiologists. Respir Med 1994; 88:165.