Some would argue that there is always hope, but from a practical standpoint it is doubtful. The body can continue to function with very little if any brain function. The higher functions, personality, are extremely doubtful. There have been cases of drowning in very cold water where the person has survived intact because of the cold slowing the body's need for oxygen. Choking by itself is going to deprive the brain and that doesn't get better. The treating physician should be able to tell you if there is any brain function. It may be a hard choice to make, but really the choice has already been made.
If the water was extremely cold there is a possibility, though the human brain cannot go without oxygen for 5 minutes on average.
No, a plant could not grow without oxygen.
Oxygen
Oxygen has an atomic mass of approximately 16.
Without oxygen to breathe, we would rapidly suffocate and die.
This all depends on the person. When a person is actually choking it means they can not cough and their airway is fully blocked. The brain can survive (in most cases) without oxygen for no more than 4 minutes. After 4 minutes the brain starts to die.
Oxygen in an airplane is not carried in a tank, it is the result of a chemical reaction. The oxygen will last for approximately ten to fifteen minutes.
Actually, no human being can go without oxygen for 4 minutes and be expected to live
4 to 5 minutes.
No, You couldn't survive more than a few minutes without oxygen. Other organisms can, like yeast, which can do anaerobic respiration (respiration without oxygen).
You cannot live without oxygen for more than 5 minutes. :D
If the brain was without oxygen for 4 to 6 minutes can caused brain dead. Early CPR is needed to prevent brain damage or hypoxia.
About 4 minutes. After One-Two minutes the person will be passed out from lack of oxygen. After 4 minutes, depending the case, he/she will have no more oxygen therefor unable to function properly and then... DEAD
12 Minutes.
no, every living animal need oxygen, either from air or water.turtles can survive for only a few minutes, like humans, without oxygen.
If you can't breathe at all, you would go unconscious around one minute (maybe a little longer if you had air in your lungs). By three minutes your brain would be damaged, and your heart would probably stop beating by 5 minutes, and you would be as good as dead very soon after that. And it also matters how hard it is.
Or bodies get energy by reacting sugars we get from our food with oxygen from the air. Without oxygen this reaction cannot occur and our cells cannot operate. Without oxygen, a person will die in a matter of minutes.