Ears and Equalisation

1. 
What is the most common dive injury?

2. 
In what position is it typically easiest to equalize?

3. 
If you are unable to equalize, what should you do?

4. 
True or False: When you reach maximum depth, you should equalize again.

5. 
True or False: You should treat barotrauma with ear drops.

6. 
If you surface with a feeling of fullness in your ears or hear crackling sounds, you should:

7. 
A reverse block is…

8. 
What do you do if you experience a reverse block?

9. 
What is the most common contributor to a reverse block?

10. 
What do you do if you experience a sinus squeeze during descent?

11. 
A diver surfaces and reports his ears are ringing; he is nauseous and extremely dizzy. What should you do?

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