Decompression (SPOLIERS)


When the pressure is let out in an attempt to kill her at the end, it goes from (IIRC) around 6 atmospheres, down to 2 before the outlets are closed and she is rescued. Is that massive drop enough to give her decompression sickness, regardless of the fact that she is still at 2 atmospheres pressure, or would the still high pressure be enough to stop her from fizzing up like an opened coke bottle?

My suspicion is that she would die from losing 4 atmospheres, but what do I know? Any medical/physics experts out there who can speak with knowledge? Or dive-masters for that matter?

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I used to dive so i might be able to give some insight.

Going from 6 athmospheres to 2 is, from what i could find, the same as going from around 50 metres to 10. Now this is all very normal, but it all depends at what pace it happens at.
As long as she keeps breathing while the pressure is changing it shouldnt be a problem.

With the decompression sickness i am less of an "expert". But i would asume that if you were used to live at 6 ATM, then going down to 2 in the matter of minutes would cause decompression sickness.

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Which is what I thought they were saying she had (seriously ill, but likely to recover inside a decompression capsule) at the end.🐭

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I'm a diver and 6 atmospheres would be deeper than 160 feet which is much deeper than recreational diving allows. Also she was in there for 5 years which means her blood would be completely nitrogen saturated. In other words, she would have as much liquefied nitrogen in her blood stream as it would absorb which isn't the problem. The problem in the "out-gassing". As pressure is decreased, the nitrogen returns to it's gaseous state. A good illustration of this is when you open a bottle of carbonated liquid, like soda. The pressure being released allows the liquefied carbon dioxide to return to gas. If you open it very slowly, it will out-gas without bubbling up. Same in the human body. Release the pressure too quickly and the nitrogen will bubble up in the bloodstream which can be fatal depending on the level of saturation and out-gassing time. Deep sea, commercial divers that are down in the thousands of feet have to spend WEEKS or more in a decompression chamber to keep from experiencing "the bends" or decompression sickness. I'm not an expert but I feel that going from 6 atmospheres to 2 as quickly as she did would have killed her but assuming it didn't, the bubbles would still cause problems in her body such as severe joint pain that would be dealt with in the decompression chamber she was shown in. So if it didn't kill her (as depicted) she would most likely make a full recovery.

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