Colonic gas can contain methane which is flammable and explosive.  options:   True   False

SCENARIO  A 22-year-old man who was a known heroin abuser was admitted to an emergence department comatose, with shallow respirations. Routine laboratory studies and chest x-ray studies were done after the patient was aroused. He was then transferred to the ICU. He complained of left-sided chest pain. Examination of the chest film showed three fractured ribs on the right and a large right pleural effusion. Further questioning of a friend revealed that he had fallen and struck the corner of a table after injecting heroin. The diagnosis was traumatic hemothorax secondary to rib fractures and a chest tube was inserted into the right pleural space. No blood could be obtained despite maneuvering of the tube.  Another chest x-ray showed that the tube was correctly placed in the right pleural space, but the fractured ribs and the pleural effusion were on the left. The radiologist then realized that he had reversed the first film. A second tube was inserted into the left pleural space, and…

A two-month-old boy was brought to the hospital because he vomited a large quantity of dark red material. Previously well, a few days earlier he had abruptly interrupted a crying episode and then appeared to have difficulty breathing. There were no recognized illnesses and no history of trauma or abuse. He was bottle-fed. Both parents smoked in the home, which was located in an area of the city characterized by substandard housing in poor repair. Three weeks before admission, their house became flooded during a storm. Cleanup had not yet been accomplished. On examination, the baby was well developed and nourished, and there was no evidence of trauma or infection. His breathing was labored. His white blood count was within normal limits, but he was moderately anemic. His blood clotted normally, but his blood oxygen was low. His chest X-ray showed patchy shadows consistent with fluid in the alveoli. The patient was initially placed on a respirator and treated in the intensive care unit…

There are a number of concerns about the chemicals we use in our everyday lives, industry and agriculture. Discuss the effects of these products on the planet and the population. Please address all three aspects and give 3 example of toxins and their effects for each of the three areas.