padi IDC theory – SCUBA physiology

Q2
__________ can be detected in the body, using a Doppler detector, before any signs and symptoms of decompression sickness 
b)   Silent bubbles

Q3
Diving with pure oxygen at depth runs the risk of ________ 
a)    Fatigue
b)   Hypoxia
c)    Oxygen toxicity
d)   All of the above
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