Why would I need to find a minimum surface interval? - ANSWER Your objective might be
very specific e.g. taking a photograph, or when dive site it slat, or may want enough time to
make the dive worth it
What are three ways I can find a minimum surface interval with a dive computer without us-
ing a dive table? - ANSWER Wait and check
Use the dive computer plan mode
Use a tablet/smartphone app
How can finding minimum intervals with RDP table and eRDP help me plan them with dive
computers? - ANSWER you will get a good estimate, and scroll your computer's no stop
times before diving
Why is going to altitude after diving a potential issue? - ANSWER Can increase the risk of
DCS
How do flying after diving and altitude diving differ? - ANSWER When flying after diving
you start and end your dive at sea level (normal surface pressure) and the go to altitude
(lower surface pressure).
When altitude diving, you start and end your dive at altitude (lower surface pressure)
What are the current recommendations for flying after diving? - ANSWER single dives (no
repetitive dives) - a minimum preflight surface interval of 12 hours is suggested
1
, Repetitive dives or multiday dives - a minimum preflight surface interval of 18 hours is sug-
gested
Dives requiring emergency decompression stops - a minimum preflight surface interval
greater than 18 hours is suggested
How do I keep up with the recommendations for flying after diving? - ANSWER You're re-
sponsible for your own dive safety and behaviour
Above what altitude do I need to use altitude diving procedures? - ANSWER 300 metres
Why are being cold and/or exerting myself strenuously issues with respect to decompression
sickness risk? - ANSWER may end dive with more dissolved nitrogen than calculated by
your dive computer
What should I do if I am cold or exert myself strenuously on a dive? - ANSWER Stay
within your no stop limits
Using the RDP Table or eRDP, I should calculate a cold or strenuous dive as 4 metres deeper
than the actual depth
When do I need to make an emergency decompression stop? - ANSWER If you exceed a
no stop limit
How do I determine the depth(s) and time(s) of emergency decompression stop(s)? - AN-
SWER Given by my dive computer
What should I do if I surface from a dive without making a required emergency decompres-
sion stop? - ANSWER breathe 100% emergency oxygen if available and monitor yourself
for DCS symptoms.
don't dive again for 24 hours
2
very specific e.g. taking a photograph, or when dive site it slat, or may want enough time to
make the dive worth it
What are three ways I can find a minimum surface interval with a dive computer without us-
ing a dive table? - ANSWER Wait and check
Use the dive computer plan mode
Use a tablet/smartphone app
How can finding minimum intervals with RDP table and eRDP help me plan them with dive
computers? - ANSWER you will get a good estimate, and scroll your computer's no stop
times before diving
Why is going to altitude after diving a potential issue? - ANSWER Can increase the risk of
DCS
How do flying after diving and altitude diving differ? - ANSWER When flying after diving
you start and end your dive at sea level (normal surface pressure) and the go to altitude
(lower surface pressure).
When altitude diving, you start and end your dive at altitude (lower surface pressure)
What are the current recommendations for flying after diving? - ANSWER single dives (no
repetitive dives) - a minimum preflight surface interval of 12 hours is suggested
1
, Repetitive dives or multiday dives - a minimum preflight surface interval of 18 hours is sug-
gested
Dives requiring emergency decompression stops - a minimum preflight surface interval
greater than 18 hours is suggested
How do I keep up with the recommendations for flying after diving? - ANSWER You're re-
sponsible for your own dive safety and behaviour
Above what altitude do I need to use altitude diving procedures? - ANSWER 300 metres
Why are being cold and/or exerting myself strenuously issues with respect to decompression
sickness risk? - ANSWER may end dive with more dissolved nitrogen than calculated by
your dive computer
What should I do if I am cold or exert myself strenuously on a dive? - ANSWER Stay
within your no stop limits
Using the RDP Table or eRDP, I should calculate a cold or strenuous dive as 4 metres deeper
than the actual depth
When do I need to make an emergency decompression stop? - ANSWER If you exceed a
no stop limit
How do I determine the depth(s) and time(s) of emergency decompression stop(s)? - AN-
SWER Given by my dive computer
What should I do if I surface from a dive without making a required emergency decompres-
sion stop? - ANSWER breathe 100% emergency oxygen if available and monitor yourself
for DCS symptoms.
don't dive again for 24 hours
2
