*A 49 years old male working in a garage was transported to hospital complaining of burning pain in mouth with dysphagia, shortly after he vomited a frothy blood tinged vomitus and tender abdomen. Few hours later he showed respiratory difficulties and few days later he showed low B.P and weak rapid pulse and tender abdomen. He was operated upon:???

- What is your diagnosis

A 20 years old female was transported to hospital complaining of abdominal pain in with vomiting. There was whitish eschars on the mouth.. Few hours later she showed respiratory difficulties and convulsions with myosis. few days later albuminurea and albumin castswere detected. She admitted for dialysis and treatment of renal failure

- What is your diagnosis?

- Renal failure explained by??

*A 40 years old male worker in a chemical laboratory, sweetened a cup of tea by white crystals in mistake for sugar. Within 15 minutes, he complained of agonizing pain in the stomach, vomited some bloody matter and his jaws were spasmodically closed.

- What is your provisional diagnosis?

- What is the action of this suspected poison?

*A male sailor was transferred comatosed to a hospital after fumigation of a cargo ship. On Examination, the pulse was 65/ minute , Bl.Pr. was 80/50 mmHg., respiratory rate was 12/ minute without cyanosis and pupils were dialted and fixed.

- What is your diagnosis?