<prompt> CSF test is required in: March 2010Morphine poisoningOrganophosphorous poisoningAlcohol poisoningArsenic poisoning  <response>: Ans. C: Alcohol poisoning Structures preserved in poisoning of: Brain: opiates, organophosphorous, alkaloids, cyanide, strychnine, barbiturates anaesthetics etc Spinal cord: strychnine and gelsemium CSF: Alcohol Bone: Arsenic, antimony, thallium 