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Certain health related problems and age will increase
the effects of CO. People who smoke or are exposed to
high concentrations of cigarette smoke, consume alco-
hol or have lung disorders or heart problems, are par-
ticularly susceptible to an increase in the effects from
CO. However, all occupants' health should be consid-
ered. Physical exertion accelerates the rate at which
the blood absorbs CO.
E. Symptoms
One or more of the following symptoms can signal the
adverse effect of CO accumulation:
1. Watering and itchy eyes
2. Flushed appearance
3. Throbbing temples
4. Inattentiveness
5. Inability to think coherently
6. Ringing in the ears
7. Tightness across the chest
8. Headache
9. Drowsiness
10. Incoherence
11. Nausea
12. Dizziness
13. Fatigue
14. Vomiting
15. Collapse
16. Convulsions
NOTICE
The order of the above list is generally the se-
quence of appearance of symptoms. However,
the order of appearance may change for differ-
ent people.
NOTICE
The symptoms of Carbon monoxide poison-
ing may easily be mistaken for seasickness.
F. Treatment (Evacuate, Ventilate, Investigate, Take
Corrective Action)
1. Move the person to fresh air.
2. Administer oxygen if available.
3. Contact Medical help.
4. If the victim is not breathing, perform artificial respi-
ration per approved CPR procedures until medical
help arrives and takes over.
Vista 248/268 Owner's Manual
03/00
NOTICE
Prompt action can make the difference between
life and death.
5. Ventilate area.
6. Investigate source of CO and take corrective ac-
tion.
G. Inspection
Look and listen for leaks in the exhaust systems of both
the generator and propulsion engine(s). Look for discol-
oration around joints in the system (water leaks, carbon,
stains, etc.).
1. Make sure all exhaust clamps are in place and se-
cured.
2. Make sure ventilation systems work and are not ob-
structed or restricted.
3. Make sure gaps around the engine room plumbing
and cableways and exhaust system doors, hatches,
and access panels are minimized to reduce the op-
portunity for CO to enter the accommodation
space(s).
H. Operation
Cold Start vs. Warm Start: CO production is greater while
the combustion chamber surfaces and gas passages
are cold versus when they are warm. A boat operator
should:
1. Pay attention to ventilating the boat.
2. Orient the boat so it will allow the maximum dissipa-
tion of CO.
3. Minimize the time spent on getting underway.
The following are examples of possible situa-
tions where carbon monoxide can accumulate
within your boat while docked, anchored, or un-
derway. Become familiar with these examples
and their precautions to prevent dangerous
accidents or death.
Section B
Page 6
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