AlexL
Contributor
Unfortunately, I do not know if there is a way to safely and accurately evaluate the actual effects on the bubbles in the event of a cabin pressurization failure where the cabin pressure can go from 4500-8000 ft to actual aircraft altitude in a matter of minutes or seconds.
according to the FAA, unpressurized cabins above 18k feet have a non trivial risk of DCS even without additional prior nitrogen loading and a gradual ascent rate. if you have an rapid decompression event in an airplane cabin from 8k ft pressure to 30k ft ambient pressure, being assuredly bent like a pretzel is going to be the least of your many adrenaline fueled concerns of the moment.