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* 1. What additional transport mechanism in the blood does oxygen administration take advantage of to deliver extra oxygen to divers?

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* 2. Which of the following are causes of DCI? Please select all that apply.

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* 3. Which of the following is the root cause of DCI?

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* 4. After what type of dive should you consider the possibility of DCI, if the diver reports abnormal symptoms?

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* 5. How long after a dive do DCI signs and symptoms appear?

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* 6. Which of the following is a sign of burst lung?

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* 7. Which of the following is a sign of DCI?

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* 8. Which of the following is a sign of shock?

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* 9. Which of the following mechanisms can cause shock? Please select all that apply.

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* 10. Which of the following is the correct treatment for the type of casualty indicated? (The items shown may be only a part of the recommended first aid). Please select all that apply.

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* 11. What special precaution should be taken with a casualty who has been in the water for a long time, and so may be suffering from immersion shock?

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* 12. It is recommended that casualties should always be evacuated for further medical attention. For which of the following conditions can this requirement be waived if the casualty appears to make a full recovery on site?

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