<prompt> A FACTORY WORKER PRESENTED WITH TREMORS AND PERSONALITY CHANGES ON EXAMINATION HIS HANDS SHOWN BELWO , WHAT IS THE DIAGNOSIS?MERCURY POISONINGLEAD POISONINGARSENIC POISONINGCOCAINE POISONING  <response>: Mercury Poisoning Acute effect By ingestion: local corrosive effects; nausea, vomiting, severe abdominal pain, chemical colitis, renal damage By inhalation: chemical pneumonitis, pulmonary edema Chronic effect Classic symptoms: tremor, gingivitis, erethism greek erethismos irritate Renal CNS damage Minamata disease - neurological syndrome caused by severe mercury poisoning REF : NARAYANA REDDY TOXICOLOGY 