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Diving > Chamber Ops > Flashcards

Chamber Ops Flashcards

1
Q

Chamber manning levels for recompression treatments?

A

Emergency - 2
Minimum - 3
Ideal - 7

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2
Q

Is a qualified inside tender required to be in the chamber at all times?

A

Yes

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3
Q

Responsibilities of Chamber Sup?

A
  • Communication with personnel in the chamber
  • Maintaining minimum manning levels
  • Ensuring familiarty with recompression procedures
  • Contacting UMO
  • Ensure recompression log is filled out regarding the assessment and treatment
  • Tracking bottom time and deco profiles of personnel in and out of the chamber
  • Ensuring bottom times are logged
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4
Q

Who is the only person that can modify tables?

A

UMO with concurrence from CO/OIC

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5
Q

What should you do before committing to a table 4 or 7?

A

Contact UMO

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6
Q

Specialty code for UMO?

A

16U0 or 16U1

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7
Q

Requirements for non-diving medical personnel to become IT qualified?

A
  • PQS
  • Current DME
  • Meet navy physical standards
  • Pass Diver Candidate Pressure Test
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8
Q

Person comes up unconscious but regains unconsciousness on surface?

A
  • Neuro to rule out AGE
  • Evaluation by UMO - possible near drowning causing aspiration
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9
Q

When is treatment to be continued on TT6 for AGE?

A

Symptoms improved within first O2 period at 60 FSW

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10
Q

When is treatment to be compression to depth of relief OR SIGNIFICANT IMPROVEMENT not to exceed 165FSW?

A

If symptoms are unchanged or worsen

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11
Q

Symptom Categories of Type 1 DCS?

A

MSK pain
Lymphatic swelling
Cutaneous symptoms

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12
Q

Hallmarks for Type 1 pain?

A

dull, aching quality, localized, unaffected by movement

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13
Q

When is pain converted to Type II?

A

Spinal cord involvement

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14
Q

CHAMBER TREAMENT ALWAYS

A
  • Follow treatment tables
  • Have qualified tender
  • Maintain normal descent and ascent
  • Examine patient
  • Treat unconscious patient for AGE or serious DCS unless it can be ruled out
  • Use air treatment tables only if O2 unavailable
  • Be alert for O2 Tox
  • Take patient off O2 for O2 hits
  • Monitor vital signs frequently
  • Observe for recurrence of symptoms, 2 hours for TT5 and 6 hours for all else
  • Maintain timekeeping and recording
  • Maintain primary and secondary
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15
Q

CHAMBER TREATMENT NEVER

A
  • Alter tables without UMO permission
  • Wait for bag resuscitator
  • Interrupt chest compressions for longer than 10 seconds
  • Allow 100% O2 below 60FSW
  • Fail to treat doubtful cases
  • Allow personnel to be cramped leading to poor blood circulation
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16
Q

What is visceral pain?

A

Vague, deep aching pain in chest or abdomen relating to internal organs

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17
Q

Most common cutaneous symptom of DCS?

A

Itching, not treated when transient

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18
Q

Situation where msk pain can be treated on Table 5 even without complete relief?

A
  • No changes after second O2 period
  • UMO deems it most likely orthopedic
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19
Q

3 Types of DCS2?

A

Neurological
Inner Ear
Cardio-Pulmonary

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20
Q

Symptoms of Cardiopulmonary DCS?

A

Chest pain aggravated by inspiration with cough and increasing lung congestion

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21
Q

Key words for whether to stay at 60 or go deeper?

A

Improving
Severe Symptoms are unchanged or worsening

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22
Q

What warrants full extensions at 60FSW even if symptoms resolve in the first O2 period?

A

Severe Type 2 symptoms

23
Q

Treatment table for uncontrolled ascent deeper than 165?

A

TT8 to depth of relief not to exceed 225FSW

24
Q

Treatment table for symptomatic Omitted D for ascent deeper than 60?

A

TT6A

25
Q

Treatment for altitude Joint pain?

A

If pain only and resolved before 1ATA, 2 hours 100% O2 on surface followed by 24 hour observation

26
Q

Primary objectives of recompression therapy?

A
  • Crush the bubble, which allows for blood blow to resume
  • Allow for sufficient time for bubble resorption
  • Increase O2 content to injured tissues
27
Q

What are the air treatment tables?

A

1A, 2A, 3

28
Q

What is 1A used for?

A

Pain relieved less than 66feet

29
Q

What is 2A used for?

A

pain relieved greater than 66 feet

30
Q

What is 3 used for?

A

Serious symptoms (again when no O2 available)
Symptoms relieved within 30 minutes at 165

31
Q

What if symptoms are not relieved within 30 minutes at 165 during a TT3?

A

Switch to 4

32
Q

When are TT5s used?

A
  • Type I DCS with complete neuro on surface and 60 feet with relief within 10 min at 60
  • Asymptomatic omitted D
  • Follow-up treatments for residual symptoms
  • Treatment of resolved symptoms following in-water recompression
  • CO poisoning
  • Gas gangrene
33
Q

When are TT6s used?

A
  • Type I DCS without relief within 10 min, or no neuro
  • Type II
  • Severe CO, cyanide, smoke inhalation
  • Asymptomatic omitted D
  • Symptomatic uncontrolled ascent
  • Recurrence of symptoms shallower than 60
34
Q

When is TT6A used?

A

AGE/DCS 2 when symptoms are UNCHANGED OR WORSEN within the first 20min O2 period. This may convert to a TT4 with UMO reccomendation

35
Q

Deal with TT7?

A

Heroic
48 hours or longer

36
Q

What is TT8 used for?

A

Deep uncontrolled Ascents with >60 min of decompression missed
Compress to depth of relief not to exceed 225f

37
Q

What is TT9 timeline>

A

90 minutes at 45 feet

38
Q

What is TT9 used for?

A
  • Residual symptoms from AGE/DCS
  • CO and cyanide
  • Smoke inhalation

** ONLY on UMOs recommendation

39
Q

what is required to treat non-diving disorders using HBO therapy?

A

BUMED CODE M95 authorization

40
Q

What type of thermometer should never be used in or around hyperbaric chambers?

A

Mercury

41
Q

IV fluid rate and type of fluids?

A

Isotonic
75 to 100cc/hr

42
Q

ACFM for occupants?

A

2acfm for resting and 4acfm for active

43
Q

When can all chamber occupants be on 100% O2?

A

45 feet or shallower

44
Q

Typical surface interval between treatments?

A

18 hours (can be shorter if breathing O2 at 30 feet and shallower)
48 hours (4,7, and 8)

45
Q

PPO2 of treatment gasses?

A

Between 1.0 and 3.0

46
Q

Treatment gas from 61-165?

A

50/50

47
Q

Treatment gas from 166-225?

A

64/36 HeO2 ONLY

48
Q

First O2 hit non convulsion steps?

A
  • Off O2
  • Wait 15 minutes AFTER ALL symptoms have subsided
  • Resume O2 from point of interruption
49
Q

Second O2 hit or convulsion steps?

A
  • Off O2
  • WAIT until all symptoms have subsided or relaxed and breathing normal
  • Decompress 10 feet at 1fsw/min
  • Resume O2 from point of interruption
50
Q

Third O2 hit or second convulsion>

A

Contact UMO

51
Q

Loss of O2 during treatment but can be fixed in <15 minutes?

A
  • Maintain depth
  • Resume O2 from point of interruption
52
Q

Loss of O2 during treatment and cannot be fixed in 15 minutes but can be fixed within 2 hours?

A
  • Maintain depth
  • Complete treatment with max O2 extensions for TT5, 6, 6A
53
Q

Loss of O2 greater than 2 hours?

A

Switch to comparable air table at current depth
IF symptoms worsen and need to go deeper than 60, switch to TT4

Diving (11 decks)

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