Q. what is "pulmonary edema" and what are the risks? my Dr. told me I'm in a risk group for pulmonary edema, he tried to explain what it is but i didn't understand fully...if someone may give me a brief explanation- I'll appreciate it! A. pulmonary edema occurs when, lets say, your heart left ventricle stops working properly and your right ventricle works fine. that means your lungs getting lets presume- 1 liter of blood -but your left ventricle can pump out of it only 990 ml. that means you have high blood pressure in your lungs and fluid comes out of blood vessels and fills your lungs, making it harder and harder breathing.
Eye protection has reduced the number and severity of eye injuries. A protective device should dissipate a potentially harmful force over a larger area. Eye protectors need to shift impact from the eyes and face to the skull without causing intracranial injury. It may be necessary to integrate helmets with eye and face protectors. The American Society for Testing and Materials (ASTM) has established performance standards for selected eyewear in racquet sports, baseball, basketball, women's lacrosse, field hockey, and alpine skiing. ASTM F803–01 standards establish performance requirements for eye-wear that are most appropriate in sports with a risk of ocular injury. 9 According to these performance standards, force transfer devices must be acceptable to the athlete, not change the appeal of the game, and not generate unacceptable liability. 1 , 11 , 13