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Flying after diving

Discussion in 'Ask Dr. Decompression' started by nivtup, Apr 28, 2001.

  1. nivtup

    nivtup Guest


    I have 2 dives planned for Saturday, both dives are only going to be in the 50 - 60 foot range. The second dive will be complete around 3:00 P.M. Saturday.

    So, my employer decides I need to fly out on Sunday morning at 6:15.

    So the question is,

    PADI requires a minimum 12 hour surface interval before flying, except after daily multiple dives, then the requirement is 12 hours of more (read to mean 24 hours).

    Since I am still fairly new at this (10 dives) I am just wanting to get an additional opinion,

    Thanks in advance.

    (Not Iguana Related)
  2. Dr Deco

    Dr Deco Medical Moderator Staff Member

    # of Dives: I just don't log dives
    Location: Issaquah [20 miles east of Seattle], Washington.
    Dear Don:

    There currently is not a good algorithm (= calculation method) for flying after diving. DAN is conducting a study in this area and it will require several years before completion. When NASA astronauts were faced with a similar problem of diving at the Marshal Space Fight Center and then flying back to Houston, they added a period of oxygen breathing. This is probably not an easy option for you, and it is probably not necessary. Since I do not have any models for this question, I can only say “probably.”

    One notes that in you case you will be sleeping for much of the time following the dives and the flight. This inactivity is not good for promoting regional blood flow and nitrogen washout. Walking around before sleep would aid in nitrogen washout and give the time necessary for tissue micronuclei (from the walking) to redissolve.

    Dr Deco

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