Dive Accident Management & DCI Quiz - Dive Safety Quizzes

In the case described below, is decompression sickness (DCS) a possibility?

A diver surfaces and develops shoulder pain that is not improved by movement or changes in body position. He claims it cannot be decompression sickness (DCS) because he dived within his dive computer's limits and his dive buddy does not have any symptoms.

A. Since both divers completed their dives within no-decompression limits, had exactly the same exposure and the dive buddy is not experiencing any symptoms, DCS can be ruled out.B. Provided the exposure was significant, DCS is possible.C. Joint pain that does not improve with movement or changes in body position is not consistent with the typical pain reported for DCS cases.D. DCS is always possible; it can happen after any dive, no matter how deep or long the dive is.

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If it is determined that DCS is possible, the best course of action would be to:

A. Administer oxygen and take the diver to the nearest hyperbaric chamber as soon as possible.B. Administer oxygen and take the diver to the closest medical facility for evaluation.C. Administer oxygen and watch for symptoms to resolve.D. Administer oxygen, provide fluids and pain killers and take diver to the closest hyperbaric chamber.

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In the sequence of events that lead to scuba diving fatalities, what is the most common trigger of rapid ascents?

A. Equipment problemsB. EntrapmentC. Insufficient gasD. Wrong gasE. Lost buddy

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Pulmonary barotrauma (PBT) is a complication of a lung overexpansion and that can be caused by:

A. A collapsed lung.B. An excess of venous gas emboli that cannot be filtered by the lungs adequately.C. The presence of excess fluid in the lungs.D. An ascent in which the diver holds his breath or does not exhale adequately.E. Hyperventilation

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True or False: Pulmonary barotrauma can occur in as little as 4 feet of water.

A. True B. False

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Gas bubbles can sometimes be found in systemic venous blood following a dive. These bubbles are typically caused by:

A. Pulmonary barotrauma and AGE.B. Decompression stress causing dissolved gas to leave solution and form bubbles.C. Presence of a patent foramen ovale or other septal defects.D. A lung overexpansion injury allowing alveolar gas to enter systemic circulation.

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Typical manifestations for arterial gas embolism (AGE) include neurological signs and symptoms that occur:

A. Immediately upon or within 15 minutes of surfacingB. Within the first hour following a diveC. Within 12 hours following a diveD. Within 24 hours following a dive

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A diver surfaces with neurological symptoms and then has spontaneous symptom resolution. What should you do?

A. Call off the second dive, and if there are no further symptoms resume diving the following day. A medical evaluation is still desired, but probably not necessary.B. Activate your emergency action plan, which should include providing basic life support, contacting emergency medical services, administering oxygen first aid and conducting a neurological assessment. Call DAN, if needed.C. Call off all other dives, return to shore and take the diver to a hospital for evaluation. There is no need for supplemental oxygen, because the spontaneous resolution of symptoms indicates there was not a significant physiological insult.D. Suspect a transient ischemic attack. There is no need for oxygen, but the patient must be medically evaluated.E. Initiate in-water recompression

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True or False: Recompression therapy in a hyperbaric chamber is always the appropriate treatment for a symptomatic diver.

A. TrueB. False

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True or False: The primary first aid measure for all suspected decompression injuries is breathing 100% oxygen at atmospheric pressure.

A. TrueB. False

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