Chamber Misc

Question 1

What are the DMO codes?

Answer 1

16U0 - Basic undersea medical officer

16U1 - residency in undersea medical

Question 2

Differentiate between IEB and inner ear DCS

Answer 2

Place divers head between his legs

If symptoms get worse, IEB

Question 3

DCS Type 2 Treatment

Answer 3

Sx improve within first o2 period-tt6

Sx not improved-press to DOR

Question 4

85-94 degrees treatments

Answer 4

TT 5, 6, 6a, 1a, 9

6hrs

Question 5

Joint pain aviation DCS after reaching 1 ata

Answer 5

Before reaching 1 ata - 2 hrs of o2 on surface, 24 hr observation after
After reaching 1 ata - tt5

Question 5

When can you use tt3

Answer 5

Serious symptoms that relieve within 30 min at 165

Question 6

When can a patient sleep?

Answer 6

Anytime not on o2

30 feet and shallower on o2

Question 9

Asymptomatic omitted d, 20-30 fsw stop, 1-7 min SI

Answer 9

In water- return to first stop depth, multiply stops by 1.5

In chamber- follow surface d rules

Question 10

What is tt8 used for?

Answer 10

• treats deep uncontrolled ascent when more than 60 min of decompression is missed
• compress to depth of relief not to exceed 225 fsw

Question 11

Asymptomatic omitted d, 20-30 fsw stop, over 7 min SI

Answer 11

In water- Return to stop depth, multiply stops by 1.5

In chamber- 2 or less chamber periods, TT5
- 2.5 or more chamber periods, TT6

Question 12

What is a level 1 chamber?

Answer 12

On station or within 5 min

CO can authorize it to 7 min

Question 13

When is a tt7 used?

Answer 13

• Extra extension at 60 fsw

- heroic measure for life threatening or non responsive AGE or DCS

Question 14

When do you use tt6a?

Answer 14

AGE or DCS when severe symptoms remain unchanged or worsen after first o2 period (20 min)

Question 15

What is a level 2 chamber?

Answer 15

One hour

First flag officer can authorize this to be a Non-Navy chamber

Question 17

95-104 degrees treatment

Answer 17

TT 5,9

2 hours

Question 18

AGE Treatment

Answer 18

Sx improves within first o2 period-tt6

Sx not improved-press to DOR

Question 18

How high can an unpressurized aircraft go with a patient?

Answer 18

1 ata or less than 1000 ft

Question 19

How do you tell if a patient is properly hydrated?

Answer 19

Clear, colorless urine

Question 20

Chamber Sup Responsibilities

Answer 20

1. Establish comms
2. Adhere to min manning levels
3. Ensure all team is familiar with ops
4. Ensure DMO is contacted at earliest
5. Patient details are recorded
6. Track BT and dive profiles
7. Dive times are recorded

Question 20

When is tt4 used?

Answer 20

When patient would receive additional benefit from depth of relief. UMO should be consulted.

Question 21

What is a tt5 use for?

Answer 21

• type 1 DCS except cutis marmorata
• asymptomatic omitted decompression
• resolved symptoms after in water recompression
• follow up treatment for residual symptoms
• CO poisoning
• gas gangrene

Question 22

What is a tt6 used for?

Answer 22

• AGE
• DCS Type 2
• DCS Type 1 when no complete relief within 10 min at 60 fsw or a neuro isn’t completed on surface
• cutis marmorata
• severe CO poisoning, cyanide poisoning, smoke inhalation
• asymptomatic omitted decompression
• symptomatic uncontrolled ascent
• reoccurrence of symptoms shallower than 60 fsw

Question 25

Asymptomatic omitted d, less than a min

Answer 25

Return to Stop depth and add a min to first stop

Question 26

How to compress a patient with an IEB?

Answer 26

Heads up

Slow and gentle

Question 26

Can you use expired co2 absorbent?

Answer 26

Nope

Question 29

Reoccurrence of symptoms shallower than 60fsw

Answer 29

Return to 60fsw | 3 o2 periods

Question 30

Round window or oval window more likely to rupture?

Answer 30

Round window

Question 31

How does one qualify for a diver pressure candidate test?

Answer 31

Dive physical

Question 31

What is the diver candidate pressure test?

Answer 31

Compress to 60fsw @75fpm (10fpm min) Stay at 60fsw for 10 min Candidates will stay at immediate chamber for 15 min Candidates will stay at facility for an hour

Question 32

Asymptomatic omitted d, no d missed

Answer 32

Observe on surface for an hour

Question 33

Greatest hazard in a chamber

Answer 33

Fire

Question 33

What is a level 3 chamber?

Answer 33

6 hours CO can authorize this as a Non-Navy chamber CO can authorize the nearest approved chamber outside of 6 hours in extreme cases

Question 34

What is a tt9 used for?

Answer 34

- residual symptoms from AGE/DCS - selected cases of CO or Cyanide poisoning - smoke inhalation

Question 34

Chamber occupants can breathe 100% o2 without locking in additional tenders at what depth?

Answer 34

45fsw or shallower

Question 35

Chamber Manning Levels

Answer 35

Min-3 Ideal-7 Emergency-2

Question 36

Asymptomatic omitted d, more than 30 fsw stop

Answer 36

In water- return to first stop, follow normal decompression until 30fsw, multiply 30 and 20 fsw stops by 1.5 In chamber- TT6 (stop deeper than 50fsw, compress to 165)