21-46
U.S. Navy Diving Manual—Volume 5
Treatment Table 9
1.
Descent rate - 20 ft/min.
2.
Ascent rate - 20 ft/min. Rate may be slowed to 1 ft/min
depending upon the patient’s medical condition.
3.
Time at 45 feet begins on arrival at 45 feet.
4.
If oxygen breathing must be interrupted because of CNS
Oxygen Toxicity, oxygen breathing may be restarted 15
minutes after all symptoms have subsided. Resume
schedule at point of interruption (see paragraph
21-5.5.6.1.1).
5.
Tender breathes 100 percent O2 during last 15 minutes at
45 feet and during ascent to the surface regardless of
ascent rate used.
6.
If patient cannot tolerate oxygen at 45 feet, this table can
be modified to allow a treatment depth of 30 feet. The
oxygen breathing time can be extended to a maximum of
3 to 4 hours.
Figure 21-13. Treatment Table 9.
Treatment Table 9 Depth/Time Profile
Time at Depth (minutes)
2::15
0
15
30
Depth
(FSW)
Descent rate
20 ft/min
45
5
5
30
30
30
Ascent rate
20 ft/min
Tota Elapsed Time:
120::15
(Not Including Descent Time)
2::15
