Recompression Tables Flashcards
(23 cards)
Diver at rest ? Air?
2 acfm
Diver not at rest, air?
4 acfm
Diver at rest. diver not at rest? O2
12.5 acfm
25 acfm
When do you go to treatment table 6 from 5 w/ pain only symptoms?
When there is not complete* relief with in 10 minutes at 60 fsw
Capability of chamber ?
Pressurize to 165 Treatment table 6 a min Inner lock once Outer kick twice Vent as specified
No bibs overboard dump
No co2 scrubber
No air bibs no o2 and co 2 monitor
Category A
Bibs overboard dump
No co2 scrubber
No air bibs
O2 and co2 monitors
Category B
Bibs overboard dump
Co2 scrubber
No air bibs
O2 and co2 monitors
Category c
Bibs overboard dump
Co2 scrubber
Air bibs
O2 and co2 monitor
Category D
What category chamber do we have?
D
Bibs overboard dump Co2 scrubber Spare co2 scrubber Secondary power supply Nitrox bibs No air bibs
Category E
If used to conduct sur “d” must also have how much air?
Enough to do a TT6a
How do you calculate system capacity?
5 x volume of inner lock(5 ata’s equivalent to 165) +
10 x ol volume
+ required ventilation
Secondary air supply must be able to pressurize inner and outer _______ to 165
Once
Table 6 a max extensions?
2 additional 25 minute periods at 60 ( 20 on o2 5 air brake)
Or up to 2 additional 75 minute periods at 30 feet (60 mins on o2 15 mins on air) or both
Emergency chamber is defined as
Closest recompression chamber when a chamber is not required immediately available or ready
Co 2 sev less than?
1.5
1.5 /
depth in ata
equals percentage
O2 rates percentage desired?
19-25 %
Equation for o2 needed in chamber
Depth+ 33/ 33 X Rmv X Time X Number of divers on o2
When do you use treatment table 5?
Type 1 dcs - complete relief w/in 10 mins at 60 fsw
And complete nuero
Asymptomatic omitted d
Treatment of resolved symptoms following in water d
Follow up treatments for residual symptoms
Carbon monoxide( co) poisoning
Gas gangrene
If o2 breathing must be interrupted due to cns o2 tox - actions?
Allow 15 mins after reaction has entirely subsided and resume schedule at point of interruption
When is table 6 used?
Age Type 2 dcs Type 1 - sever pain / unchanged or worsening within 10 mins at 60 fsw Cutis marmorata Severe co poisoning - severe headache/ vomiting Cyanide poisoning Smoke inhalation A symptomatic omitted d - deeper than? Symptomatic uncontrolled ascent Recurrence of symptoms shallower than 60
6a - ascent rates ?
165 - 60 not to exceed 3 per min
Shallower than 60 not to exceed 1
