Q8
After a dive a diver displays the signs and symptoms of tunnel vision and cherry red nail beds. What is the most likely cause?
c) Contaminated air poisoning
Q9
The greatest risk from forceful equalizing using the Valsalva manoeuvre is potential
a) Ear drum rupture
b) Sinus rupture
c) Round window rupture
d) A bad cough the next morning
Click next to reveal the answer