MK16 MOD 1 Dive Sup

DCS on ascent Divers remaining in the Water:

-Dispatch standby diver to assist -Have diver descend to depth of relief of Sx in 10 fsw increments, but no lower than two increments (20fsw) -Compute new 'D' profile by multiplying all stops by 1.5 If went deeper than first stop on original schedule, use stop time equal to 1.5 times first stop in original decompression schedule for the one of two stops deeper than the original first stop Ascend on new profile Lengthen stops as needed to control Sx Upon surfacing, transport to chamber Asymptomatic treate on TT5 Symptomatic treat IAW Chapter 20 - min- TT6

Shallow dives in which the rig remains in __________ ata mode throughout are excluded from what?

.75 ppO2 mode From the 4 hour per day / 16 hour per week rules

The attributes of the MK 16 limit use to inspections, searches, and light work requiring a diver to swim agains a current of less than

.85 knots

Minimum emergency equipment that should be available on-station for every diving operation?

1. Communication equipment capable of reaching help 2. A completely stocked First Aid Kit 3. Portable Oxygen supply with sufficient capacity to reach either the recompression chamber or the planned evacuation location listed in the EAC 4. Resuscitator or Bag-mask ( to provide rescue breathing) 5. Means of extraction / transporting unconscious diver (litter, stretcher, mesh stretcher,backboard, etc) 6. Fresh water for chemical injury; 2QTs minimum 7. AED - Automated External Defibrillator

Altitude Diving Procedures and Flying after Diving: Helium/Oxygen Dives

1. For No-'D' with total bottom times, including repetitive dives less than 2 hours wait 12 hours on the surface before ascending to altitude 2. For No-'D' with bottom times, including repetitive dives greater than 2 hours or for Decompression Dives wait 24 hours

N2O2 Repet Dives up to 150 fsw

1. One Decompression dive to 150fsw, + 3 No-D dives 2. Two decompression dives to 150 fsw 3. 151-190, prior CNO approval for repet <==Can use 1 & 2

HEO2 Repet Dives up to 200 fsw

1. One Decompression dive to 200 fsw, + 3 No-D dives to 200 fsw 2. Two decompression dives to 200 fsw + 0 Dives 3. One No-D or One decompression 201-300 fsw ( no repets deeper than 200 fsw)

A diver who has been breathing a mixture with ppO2 lower than ___________ ata for any length of time has a greater risk of developing _____________. Such a diver requires ___________________?

1.15 ppO2 DCS A neurological exam and observation after surfacing, not need not be treated unless Sx of DCS are present.

Due to the Hydrostatic effects that are inherent with a back mounted counter lung, use is restricted to an oxygen consumption rate of ?

1.2 lpm

If the diver is deeper than 20 fsw, and a ppO2 of _________ ata or higher persists within the UBA for a period of __________ consecutive minutes, this condition should be treated as ?

1.45 ata or higher 15 consecutive minutes treated as rig malfunction, appropriate EP should be followed

Sx of CNS O2 toxicity may become apparent when the diver exceeds what ata?

1.6 ata

MK16 He/O2 Decompression procedures may be used for diving at altitudes up to ________________ feet without modification

1000 feet

Work up dives are strongly recommend prior to diving at depths greater than?

130 feet

Increased breathing resistance and concerns about CO2 retention and CNS O2 Toxicity, planned N2O2 dives deeper than _____________ fsw are considered exceptional exposure dives and require _________

150 fsw CNO approval

Limited total dive time on MK 16 MOD 1 to a maximum per week

16 Hours per week

All dives within the last ____________ must be considered when selecting a decompression table

18 hours

MK 16 Diluent bottle holds what standard cubic feed of gas?

21 standard cubic feet (595 liters) @3,000 psig

Post-Dive Procedures are to be conducted at completion of diving operations in preparation area. Must be completed during continuous diving operations every?

24 hours Filled out concurrently with performance of post dive procedures.

Maximum ascent rate

30 fsw

Limited total dive time on MK 16 MOD 1 to a maximum per day

4 Hours per day

If after arrival at the first stop, as flashing red persists on the primary display, the diver should initiate the proper EP and shift to EBS after what amount of time?

4 minutes

If diver is unconscious, what line pull do you send?

4-2: Rig Malfunction Followed by a 1 if not aborting 4 if aborting

The diver should terminate dive If there is no indication of transition past what depth?

40 fsw

Regardless of the depth of the first decompression stop, the EBS must be lowered to what depth to allow the rig to switch to what ppO2 level?

40 fsw 1.3 ppO2 The EBS can be then raised or lowered to 10 feet below the first decompression stop

As a MK 16 diver descends, breathing inhalation becomes more difficult on N2O2, especially at depths over what ATA?

5 atas

It is recommended to lower the EBS to __________ if the first decompression stop is shallower than ______________. This allows for topside personnel to track delays in ascent deeper than 50fsw.

50 fsw First stop is shallower than 40 fsw

A Diver who has not made a MK 16 MOD 1 dive in the previous ______________ months must re-familiarize himself with EPs and OPs, and must complete a _____________.

6 Months Complete a MK 16 training dive prior to making a operational dive

Prior to conducting MK 16 operational decompression diving, a diver who has not conducted a MK 16 decompression dive within the previous ______________, must complete ________________

6 Months Complete open water decompression training dives

Descent rate shall never exceed?

60 fpm

Warm Water Diving Considerations

88 - 94 - Limited to canister/O2 bottle duration or diver aerobic endurance 94 - 97 - Limited to 3 hours based on physiological limits 97 - 99 - Limited to 1 hour based on physiological limits

It may take ____________ to breathe down additional O2 added to the breathing mixture as a portion of the diluent gas ( increasing make up). If secondary display registers _________ on two sensors, diver will halt descent and breathe normally to consume excess O2. If no significant change after ____________ minutes the diver will initiate the EP for high ppO2 and terminate the dive.

:2 - :5 1.9 4 minutes

Prior to divers entering the water, what must be completed?

A list of checks conducted by the Supervisor MK 16 MOD 1 Diving Supervisor Checklist

Sx of non-convulsive Sx CNS Oxygen toxicity occur immediate action

Ascending to shallower depth to lower Oxygen partial pressure Add diluent to the breathing loop Secure Oxygen cylinder if oxygen addition is uncontrolled

What ratio of MK 16 dive training should be conducted at night or in conditions of restricted visibility?

At least Half.

When diving on unknown or influence ordnance, the standby divers equipment shall...

Be the same type as the diver performing the actual procedure MK-16

Due to increased breathing resistance and concerns about CO2 retention, CNS O2 toxicity, planned N2O2 dives deeper than ___________ require who's approval

CNO

A major limiting factor for the MK 16 MOD 1 is the ____________________

CO2 Absorbent capability

A MK16 is suitable for diving in ____________ contaminated water with what FFM?

Category 3 contaminated water M-48 FFM reduces risk of exposure through exhaust valve reflux.

Who's permission is required to exceed the Weekly and daily rules of MK 16 dive times

Commanding Officers permission

Initial setup procedures

Completed every 6 months Prior to a mission After any major repair After any sensor is replaced or repositioned

Divers must monitor Primary Display how often?

Continously

Asymptomatic Omitted Decompression deeper than 20 fsw (Supervisor's actions)

Deeper than 20fsw - more serious situation exists Less than 30 minutes missed and surface interval less than :5 = TT5 Less than 30 minutes missed and surface interval exceeds :5 = TT6 More than 30 minutes missed - Treat on TT6 regardless of SI

CNS O2 Toxicity is more of a threat during descent due to ppO2 especially at what depths ?

Depths of 150 fsw and deeper with N2O2 or 200 fsw for HeO2

Treatment of underwater convulsion: Ventilate the UBA with ______________ to lower the ppO2 and maintain depth until convulsion subsides

Diluent Make controlled ascent to first decompression stop, maintaining a slight pressure on the divers chest to assist exhalation

Upon arrival at the first stop, allow the UBA to stabilize. Ensure the divers ______________ is maintained as close as possible to each decompression depth.

Divers Chest

Above 94 degrees, the primary concern limiting the dive duration is the

Divers physiological considerations vice the canister duration

In the event of prolonged transit what are some considerations

Does the transportation have enough oxygen and medical supplies to support the trip? These considerations should take place during mission planning, before you consider if the dive can feasibly be made.

For MK 16 Decompression dives add one person as an _____________ is required.

EBS Operator

During planned decompression dives a _____________ must be used

EBS rig

Formal process to ensure standardized reporting of MK 16 component

Failures or adequacy

Divers must monitor Secondary Display how often?

Frequently 2-3 minutes

It is recommended to place EMS as close to the project site as possible, this is best accomplished

From a two point moor

Always conduct what prior to deploying divers?

Hands on Check

Failure of carbon dioxide absorbent canister to absorb carbon dioxide or incorrect installation of breathing hoses can cause Sx of ?

Hypercapnia

Unidirectional flow of gas in the Pod Assembly is achieved by one way valves within the tubing. Improper one way valves can lead to ?

Hypercapnia

Asymptomatic Omitted Decompression at 20 fsw (Supervisor's actions)

If deepest stop omitted is 20, diver may be returned to 20 fsw stop If SI was less than 1 min - add one minute to stop time and resume planned 'D' at point of interruption If SI was greater than 1 min / Less than 5 compute new d schedule by multiplying 20fsw stop time by 1.5. Ascend on new schedule Alternatively, if chamber is immediately available on dive station - compress to 20 fsw in chamber vs in-water Multiply 20fsw stop time by 1.5 SI greater than 5min - treat on TT 6

Sx of Hypercapnia develop

Immediately stop work and take several deep breaths Increase ventilation if skip-breathing is a possible cause Ascend. Reduce partial pressure of CO2 in rig & lungs If Sx do not rapidly decrease, aborts dive During ascent, maintain vertical position, activate bypass valve, adding fresh diluent gas into UBA Maintaining upright position decreases liklihodd of chemical injury for a rig floodout

When may the Diving Supervisor conduct diving operations without buddy lines ?

In situations where their use is not feasible or where their use will pose a greater hazard to the divers than diving without them

Factors that increase likelihood of CNS Oxygen Toxicity

Increased ppO2 Increased time of exposure Prolonged immersion Stress from strenuous physical exercise Carbon Dioxide buildup

Recompression Chamber Considerations: In certain circumstances a non-Navy chamber can be used to meed the requirement, provided it has been ?

Inspected by a qualified chamber supervisor and deemed to offer comparable treatment capability, safety, and accessibility. Location of the nearest medical facility for treatment of injuries and medical problems not requiring recompression therapy Optimal method of transportation to the treatment chamber or medical facility

Lines shall be marked how?

Marked with Red, Yellow, and Black bands starting at the divers or clump end. Red Bands indicate 50 fsw Yellow and Black indicate 10 fsw

Certification is a combination of two major areas of review

Material Procedural adequacy

MK 16 MOD 1 qualifications remain in effect as long as diver qualifications are maintained in accordance with ?

Military Personnel Manual article 1220-100

A minimum of how many motorized safety boats must be present for all open water dives?

Minimum of 1 A safety boat is also recommended for tended pier dives or diving from shore. Safe diving practice in many situation will require the presence of more than one safety boat.

Single diver requires a minimum of how many personnel ?

Minimum of 4: Supervisor Diver Standby Diver Tender

2 divers require a minimum of how many personnel ?

Minimum of 5: Supervisor Diver Diver Standby Diver Tender

The EBS should be

Mounted on EBS Frame Charged with same diluent as the planned dive

For diving at altitudes above 1000 feet, the Dive Supervisor must contact?

NAVSEA OOC for guidance

Maintenance Records

NAVSEA certification letter Computer printout of MK 16 MOD 1 status -recert, nonmagnetic recert date, hydrostatic test due dates, serial of components, history of FAR and RECs Current maintenance log sheet that lists PMS or corrective maintenance along with FAR and REC Most recent initial setup checklist, post-dive checklist, along with applicable pre-dive BCD and FFM checklist

If more dive time is required to accomplish a specific mission, contact who for additional guidance?

NEDU FOOL

Is Sur D authorized for MK 16 MOD 1?

NO

Should fluids such as vinegar or lemon juice be used for treatment of chemical burn from a caustic cocktail?

NO NO NO NO

The rulse for using decompression tables are the same for N2O2 and HeO2 however, the tables are...

NOT INTERCHANGEABLE

Altitude Diving Procedures and Flying after Diving: Nitrogen/Oxygen Dives:

Nitrogen/Oxygen Dives: Determine the highest repetitive group designator obtained in the previous 24-hour period.

Use of Voice COMMS are highly recommended for all dives conducted in what types of environments?

Non-EOD environments Especially during in-water decompression diving

Use of a FFM is mandatory when diving the MK 16 MOD 1 in what conditions?

Non-Mine Counter Measures Environments

Possible Causes for Unconscious Diver

Oxygen Deficiency (Hypoxia) Carbon Dioxide Toxicity ( Hypercapnia) Convulsing Diver Near Drowning Mechanical Injury

Battery Discharge hours in 68 degree water

Primary: 10 hours Secondary: 100 hours

Immediate action for experiencing Sx of Hypoxia

Raise Oxygen partial pressure

Asymptomatic Omitted Decompression deeper than 20 fsw No Chamber Available (Supervisor's actions)

Recompress in water using 1.3 ata constant ppO2 table Descend to deepest decompression omitted and repeat this stop entirety Complete 'D' schedule, lengthening all stops 40 fsw and shallower by multiplying 1.5. If the deepest stop was 40 fsw or shallower, this stop should be multiplied as well. After arrival at 40 fsw or shallower, Oxygen ppO2, may be manually adjusted to 1.3 ata When recompression in water is required, keep the SI as short as possible Switching to a standby UBA may be necessary so decompression time will not be compromised by depletion of gas supplies

Use of MK 16 MOD 1 in non-MCM environments does not constitute a real threat; therefore single untended divers ___________ be used in search, inspection, and light work operations. In MCM environments, single untended divers may be utilized with permission from the ____________. The divers shall be _______________.

SHALL NOT EOD DIVING OFFICER Surface tended or marked by a buoy

Is switching Diluents between dives authorized in the MK16 MOD 1?

Shit no man, I believe you'd get your ass kicked for doing something like that...

DCS on ascent Divers Leaving the Water:

Surface the Diver not to exceed 30fpm If level 1 Chamber is available - compress IAW ch. 20 If not available - transport to nearest chamber - Follow IAW Ch. 20

If Sx of pulmonary or visual oxygen toxicity develop at any time during a multi-day mission, stop diving until all Sx have resolved and the diver remains?

Sx free for a minimum of 24 hours

Absorbent duration is directly related to the environmental operating

Temperature and Depth Absorbent duration decreases as temperature decreases and depth increases

Possible Causes of Asymptomatic Omitted Decompression

UBA Failure Exhausted diluent/oxygen supply Drysuit or buoyancy compensator blow-up Bodily injury

Air and ground transportation should be manned for the duration of the clean time for the diver for how long?

Up to 24 hours after the dive.

When can you use SCUBA as standby?

When appropriate during training and non-influence diving operations, SCUBA may be used for N2O2 dives within SCUBA depth limitations

Standard Decompression tables why?

because ppO2 remains constant at the preset level regardless of depth