Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

NDSTC > Diving Manual Chapter 17 > Flashcards

Diving Manual Chapter 17 Flashcards

1
Q

what is the minimum manning level for recompression treatments?

A
  1. chamber supervisor
  2. inside tender / DMT
  3. outside tender
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

for an emergent diving injury what is the absolute minimum number of personnel for treatment?

A
  1. chamber supervisor

2. inside tender / DMT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

AGEs are treated with initial compression to ___ fsw

A

60

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

if AGE symptoms are improved within the first oxygen breathing period at 60 fsw, then treatment is continued using Treatment Table ___

A

6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

if AGE symptoms are unchanged or worsen within the first oxygen breathing period at 60 fsw, then what do you do?

A
  • assess patient upon descent

- compress to depth of relief NTE 165 fsw

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what % of DCS symptoms occur within 1 hour?

A

42%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what % of DCS symptoms occur within 3 hours?

A

60%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what % of DCS symptoms occur within 8 hours?

A

83%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what % of DCS symptoms occur within 24 hours?

A

98%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

42% of DCS symptoms occurs within ___ hour(s)

A

1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

60% of DCS symptoms occurs within ___ hour(s)

A

3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

83% of DCS symptoms occurs within ___ hour(s)

A

8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

98% of DCS symptoms occurs within ___ hour(s)

A

24

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

how does type I DCS manifest?

A

PAIN only:

  • joints
  • MSK
  • skin
  • swelling / pain of lymph nodes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what are the hallmark characteristics of type I DCS pain?

A
  • dull
  • achy
  • confined to particular areas
  • always present at rest
  • usually unaffected by movement
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

how long is a patient monitored after treatment for pain-only symptoms?

A

2 hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

how long is a patient monitored after treatment for serious symptoms?

A

6 hours

18
Q

what is the most common manifestation of DCS?

A

itching

19
Q

do you need to recompress for itching?

A

no

20
Q

do you need to recompress for faint skin rash?

A

no

21
Q

do you need to recompress for mottling / marbling of the skin (cutis marmorata)?

A

yes

22
Q

what do you do if a full neuro exam is not completed before initial recompression?

A

treat as type II DCS

23
Q

what is done if a UMO decides that pain is related to specific orthopedic trauma or injury?

A
  • use treatment table 5 (if a UMO is consulted)

- use treatment table 6 (if UMO is not consulted)

24
Q

type II DCS is divided into what categories?

A
  • neurological
  • inner ear
  • cardiopulmonary
25
Q

how is inner ear DCS differentiated from neuro (cerebellar) DCS?

A

nystagmus is typically not present in cerebellar DCS

26
Q

how does type II DCS differ from AGE?

A

time course - AGE symptoms typically occur within 10 minutes of surfacing

27
Q

is treatment table 5 an appropriate treatment for symptomatic omitted decompression?

A

no

28
Q

what do you do for a diver with symptomatic omitted decompression who surfaced from 50 ft or shallower?

A

compress to 60 fsw and begin treatment table 6

29
Q

what do you do for a diver with symptomatic omitted decompression who surfaced from deeper than 50 ft?

A
  • compress to 60 fsw or the depth where the symptoms are significantly improved (NTE 165 fsw)
  • begin treatment table 6
30
Q

what do you do if joint point is present but resolved before reaching 1 ata from altitude?

A

treat with 2 hours of 100% oxygen breathing at the surface followed by 24 hours of observation

31
Q

what are the basic rules to be followed for all recompression treatments?

A
  1. compress gas bubbles to a small volume, thus relieving local pressure and restarting blood flow
  2. allow sufficient time for bubble resorption
  3. increase blood oxygenation content and thus oxygen delivery to injured tissues
32
Q

which are more effective - air treatment tables or oxygen treatment tables?

A

oxygen

33
Q

what are the options if a chamber is not available?

A
  1. transport to nearest chamber
  2. in-water recompression

*administer 100% oxygen during transport

34
Q

what are the recommendations for patient transport to a nearby chamber?

A
  • supine
  • head up
  • keep warm
  • 100% oxygen
  • constant monitoring
35
Q

if a patient is moved by helicopter or other unpressurized aircraft, the aircraft should be flown as low as safely possible, preferably less than _____ ft

A

1000 ft

36
Q

when can in-water recompression be initiated?

A

if there is no benefit with 100% oxygen at the surface after 30 minutes

37
Q

when are air treatment tables 1A, 2A, and 3 used?

A

only as a last resort when oxygen is not available

38
Q

when is treatment table 5 used?

A
  • type I DCS
  • asymptomatic omitted decompression
  • treatment of resolved symptoms following in-water recompression
  • follow-up treatments for residual symptoms
  • CO poisoning
  • gas gangrene
39
Q

when is treatment table 6 used?

A
  • AGE
  • type II DCS
  • type I DCS where relief is not complete within 10 minutes at 60 feet or where pain is severe and immediate recompression must be instituted before a neuro exam can be performed
  • cutis marmorata
  • severe CO poisoning
  • cyanide poisoning
  • smoke inhalation
  • asymptomatic omitted decompression
  • symptomatic controlled ascent
  • recurrent of symptoms shallower than 60 fsw
40
Q

what is the VENTID-C mnemonic for oxygen toxicity symptoms?

A 
V - vision 
E - ears 
N - nausea 
T - twitching / tingling 
I - irritability 
D - dizziness 
C - convulsions
41
Q

CNS oxygen toxicity is unlikely in resting individuals at chamber depths of ___ feet or shallower and very unlikely in resting individuals at chamber depths of ___ feet or shallower, regardless of the level of activity

A
  • 50

- 30

42
Q

what are the options for treatment of residual symptoms for persistent type II DCS?

A
  • daily TT 6

- BID TT 5 or 9

NDSTC (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions