macsleep
New
are there any guidelines for how long to wait before rediving after a rapid ascent, or are only the standard dive tables available?
Guidelines for rediving after rapid ascent
- Thread starter macsleep
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Bubbletrubble
Contributor
First of all, you'll need to define "rapid ascent." Was this a profile that exceeded 33 ft/min or a much faster one that exceeded 60 ft/min?
There are many variables to consider:
At what rate did the diver make the ascent?
From what depth?
What was the diver's profile for the dive in question?
Was was the state of his nitrogen loading? Any previous dives that day...or within the last 24 hrs?
Did he/she violate any deco obligations?
Did the diver experience any symptoms associated with AGE?
What about other symptoms of pulmonary barotrauma?
Any DCS symptoms?
When in doubt, be conservative.
When in doubt, call Divers Alert Network. Even if you aren't a member, they will give you solid medical advice.
For non-Emergency Medical Questions, the DAN contact number is 1-800-446-2671 or 1-919-684-2948, Mon-Fri, 9am-5pm (ET).
Have fun and dive safe.
There are many variables to consider:
At what rate did the diver make the ascent?
From what depth?
What was the diver's profile for the dive in question?
Was was the state of his nitrogen loading? Any previous dives that day...or within the last 24 hrs?
Did he/she violate any deco obligations?
Did the diver experience any symptoms associated with AGE?
What about other symptoms of pulmonary barotrauma?
Any DCS symptoms?
When in doubt, be conservative.
When in doubt, call Divers Alert Network. Even if you aren't a member, they will give you solid medical advice.
For non-Emergency Medical Questions, the DAN contact number is 1-800-446-2671 or 1-919-684-2948, Mon-Fri, 9am-5pm (ET).
Have fun and dive safe.
Tomikp
Registered
1) it depends on the dive type - decompression or not. If you miss your safety stop at 5 mtrs for 3 minutes, most likely nothing will happen, you can go back and finish this procedure.
2) if you miss some decompression stops and you are able to stop until you reach 1/2 of your maximal reached depth, you should stay there for 5 mins and then continue in regular stops.
3) if you will ascent up to the surface, you shouldn't stay there no longer than 3 minutes. In this case you should follow the alternative regime - count all times since your rapind ascent got started and then recalculate the subsequent descent regarding your decompression tables.
4) If you are unable to make the emergency dive due to your health injuries, someone must call a medical service.
These techniques are related to experienced divers and you should be approved to make decompression dives first where you will learn exactly how to solve this problem. Everytime try to keep your decompression procedures properly. Barotraumas caused by too fast ascents are more often injuries than DCS.
2) if you miss some decompression stops and you are able to stop until you reach 1/2 of your maximal reached depth, you should stay there for 5 mins and then continue in regular stops.
3) if you will ascent up to the surface, you shouldn't stay there no longer than 3 minutes. In this case you should follow the alternative regime - count all times since your rapind ascent got started and then recalculate the subsequent descent regarding your decompression tables.
4) If you are unable to make the emergency dive due to your health injuries, someone must call a medical service.
These techniques are related to experienced divers and you should be approved to make decompression dives first where you will learn exactly how to solve this problem. Everytime try to keep your decompression procedures properly. Barotraumas caused by too fast ascents are more often injuries than DCS.
floridanewbe
Contributor
welcome aboard
For recreational divers, if you have had an uncontrolled ascent, you should exit the water and monitor for DCS symptoms, and dive no more that day.
In water recompression is a procedure used by technical divers who are operating in remote locations. It requires certain equipment and solid support divers. Omitted decompression procedures are published by the Navy, but again, pertain to staged decompression diving.
If you have merely omitted a safety stop, you will most likely be fine; after all, they are a relatively recent introduction in the history of diving. A full (one hour or more) surface interval should be sufficient.
In water recompression is a procedure used by technical divers who are operating in remote locations. It requires certain equipment and solid support divers. Omitted decompression procedures are published by the Navy, but again, pertain to staged decompression diving.
If you have merely omitted a safety stop, you will most likely be fine; after all, they are a relatively recent introduction in the history of diving. A full (one hour or more) surface interval should be sufficient.
Call DAN and explain the spfx. of the dive. 1-919-684-4DAN (4326).
Welcome to the board...
Welcome to the board...
dwaters
Contributor
Welcome to the 'board and hopefully into SCUBA!!!!!!!!!!!
Good advise here, always err on the safe side...it's your life and you can always dive tomorrow.
Get that cert card and feel free to dropon down to your local So.Cal. forum and join in the fun:
http://www.scubaboard.com/forums/socal/ Hope to see you in the water someday soon!
Good advise here, always err on the safe side...it's your life and you can always dive tomorrow.
Get that cert card and feel free to dropon down to your local So.Cal. forum and join in the fun:
http://www.scubaboard.com/forums/socal/ Hope to see you in the water someday soon!
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