CH 17

Question 1

True/False

Initial denial of DCS TYPE II is common. If so, why?

Answer 1

True

Six may not be obvious. Feeling weak or fatigued may be attributed to overexertion.

Question 2

What is the course of action if treating Type I DCS without a full neuro completed before initial recompression?

Answer 2

Treat as Type II DCS

Question 3

Do Type I DCS faint skin rashes and itching require recompression treatment?

Answer 3

No

Question 4

3 categories of Type II DCS

Answer 4

Neurological
Inner ear (staggers)
Cardiopulmonary (chokes)

Question 5

True/False

Treatment Table 4 can be used with or without O2.

Answer 5

True

•Always use O2 if available

Question 6

The descent rate for oxygen tables is

Answer 6

20 feet per minute

Question 7

Which air table is used if pain is relieved at a depth less than 66 feet?

Answer 7

1A

Question 8

Air table used at a depth greater than 66 feet

Answer 8

2A

Question 9

Is treatment table 3 an air table or an O2 table?

Answer 9

Air

Question 10

Which treatment table is used to treat serious symptoms when 02 is not available?

Answer 10

Treatment table 3

Question 11

As a last resort, when no recompression facility on site, SX are significant, chamber not accessible within reasonable timeframe (12-24hrs), what is an alternative?

Answer 11

In-Water Recompression

Question 12

Which treatment table is used to treat:

Type I DCS (except curtis marmorata)
Asymptomatic committed D
Gas gangrene
CO poisoning
Follow up TX for residual SX
Treatment of resolved SX following in water recompression 

?

Answer 12

TT5

Question 13

This TT is used for the following:

AGE
Type II DCS SX
Type I SX where relief is not complete w/in 10 min. at 60 ft. 
Cutis marmorata
Severe CO poisoning/smoke inhalation
Asymptomatic D
Symptomatic uncontrolled ascent 
Recurrence of SX shallower than 60 ft. 

What is it?

Answer 13

TT6

Question 14

Use Treatment table 6A when…

Answer 14

• AGE or D symptoms when severe SX remain unchanged or worsen w/in the first 20 min. At 60 fsw.
• Compress patient to depth of relief or significant improvement NOT to exceed 165 fsw

Question 15

When it is determined that patient would receive additional benefits at depth of significant relief, not to exceed 165 fsw, shift from what TT to what other TT?

Answer 15

Shift from 6A to 4

Question 16

True/False

TT7 is an extension at 60 feet of all oxygen treatment tables

Answer 16

False

It is an extension at 60 feet of TTs 6, 6A, or 4.

Question 17

Treatment table considered heroic measure

Answer 17

TT7

Question 18

Table to treat deep uncontrolled ascents

Answer 18

TT 8

Question 19

TT 7 temperature requirement

Answer 19

85 degrees F or less

Question 20

What treatment table number is the HBO2 table

Answer 20

TT9

Question 21

90 minutes 100%O2 at 45 feet

Answer 21

TT9

Question 22

What will failing this exam make me?

Answer 22

A diver

Question 23

What will passing this exam exam make me?

Answer 23

A diver

Question 24

Chamber O2 level range

Answer 24

19 to 25 %

Question 25

Course of action if chamber O2 levels exceed 25 %

Answer 25

Vent with air