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After a two-tank morning scuba dive is it OK to accend to a 14K summit?
Scuba Diving This cannot be answered definitively, especiallywithout knowing the depths of the morning dives. However, this isalmost certainly not safe and not worth the risk …of decompressionillness. Improvement Going to Altitude after Diving is the same asflying after diving. There are many trains of thought, and theminimum time recommended after 2 dives in one day is 18 hours. Ifyou have been diving multiple dives (2 or more) over multiple days(2 or more), the minimum recommended time is 24 hours. A goodsource of reference is DAN and do a search on flying after diving.Small Addition Its also important to note that physical exertionpost dive increases the risk of decompression sickness regardlessof altitude. It would stand to reason that physical exertion at and increasingaltitude would be a compounded risk. Further Explanation -Physiology A two tank dive would almost certainly result in a lotof nitrogen in your system. Going to a height where the pressure isless than atmospheric will certainly increase the risk of thatcompressed gas expanding into your bloodstream faster than it wouldotherwise do so. The bends is a real risk in this situation.Addition A 14,000 foot ascent is a very large ascent. It will morethan likely result in bubbling even if no dives had been made.There should be a nice survace interval no matter what dives weredone prior to the ascent. Always consult your personal dive computer, which calculates thenitrogen in your blood. (MORE)