<prompt> A patient receives a toxic dose of lignocaine i.v., the patient is likely to exhibit?Excessive salivationMydriasis and diarrheaRespiratory paralysisSeizures and coma  <response>: If LA reaches the blood stream, most prominent adverse effects are related to CNS and CVS. In CNS :-stimulation convulsions followed by depression coma is seen. - Initial stimulation is due to inhibition of the inhibitory neurons. 