survival with loss of oxygen at high altitudes
I was asked if oxygen deprivation due to extremely high altitude (low pressure) would be any different than oxygen deprivation at sea level.
I understand that time of useful consciousness is down to 15 seconds or so at very low pressures, however I'm asking about permanent brain damage.
I came up with the following scenario to illustrate this. Suppose an average individual is subjected to 4 minutes at FL410 in a pressure chamber without any oxygen breathing apparatus. Would he be any more or less brain dead than an individual at sea level who was denied oxygen for 4 minutes (for example underwater with nose/mouth blocked)?
Would one situation be more likely to require the use of CPR or mouth to mouth resuscitation?
I am interested in your thoughts
Hawk