- Carbon dioxide toxicity predisposes the diver to four other diving ailments – what are they
(a) Decompression Sickness (bends)
(b) Nitrogen Narcosis
(c) Oxygen toxicity
(d) Hypothermia
Also acceptable: Headache
- List six signs and symptoms of carbon dioxide toxicity
Tachycardia (increased heart rate)
(b) Headache (frontal)
(c) Increased breathing rate
(d) Nausea
(e) Vomiting
(f) Confusion
- List four signs and symptoms of carbon monoxide toxicity
Cherry red lips and nail beds
(b) Nausea/vomiting
(c) Extreme fatigue
(d) Decreased consciousness/unconsciousness
- List three causes of carbon dioxide toxicity
Large ‘dead-air spaces’ such as helmets and full-face masks
Skip breathing
Tight equipment restricting breathing
Poorly performing regulator
Hard work coupled with poor equipment function
- List three sources of carbon monoxide poisoning
Compressor sucking contaminated air directly into compressor intake
Flashing of oil in compressor – due to either:
- poor maintenance
- inadequate filtration
- wrong oil being used
Direct contamination by breathing exhaust fumes in environment
what system delivers marine venom through the body?
Lymphatic system
describe the pressure / immobilisation technique?
it controls the spread of venom / toxin, giving time to get medical help.
Do not use pressure bandages for spine related venom = stonefish
cnidarians = cone snail use what as a predatory system?
coiled harpoon like structure, discharged into prey
treatment for cnidarian envenomation?
remove tentacle, vinegar/hot water, pain relief meds
what does a blue ring octopus and cone snail cause to a person?
paralysis / respiratory failure
blue ring octopus treatment?
pressure / immobilisation
treatment after paralysis ?
open airway, check breathing
