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21) A reflex that occurs when a person dives into cold water in which her breathing is inhibited, her heart rate becomes bradycardic, and vasoconstriction occurs is known as the: A) Diving reflex B) Mammalian diving reflex C) Submersion reflex D) Mammalian submersion reflex 22) The amount of fluid that enters the lungs in a drowning case is: A) < 30 mL B) > 30 mL C) < 20 mL D) > 20 mL 23) The substance within the body that is responsible for preventing atelectasis is: A) Aveolar fluid B) Surfactant C) Pleural fluid D) Atelectasis fluid 24) All of the following are part of the drowning sequence of a conscious person except: A) Attempted breath holding B) Violent swallowing efforts C) PaCO2 in the blood falling below 50 D) PaO2 in the blood falling below 50 25) You and your partner are treating a drowning patient who had a submersion time of 10 minutes. Your partner wants to perform the Heimlich maneuver; you should: A) Advise your partner that the Heimlich maneuver should not be utilized for drowning victims B) Agree with your partner and begin performing the Heimlich maneuver C) Agree with your partner, as you know the Heimlich maneuver should only be performed on patients with a submersion time of less than 15 minutes. D) Advise your partner that the Heimlich maneuver should only be performed on patients with a submersion time of greater than 15 minutes 26) Boyle’s law states that ________ the pressure of a gas will _______ its volume: A) Decreasing, decrease B) Decreasing, increase C) Increasing, increase D) Increasing, decrease 27) Which law of gases states that the amount of gas dissolved in a given volume of fluid is proportional to the pressure of the gas above it? A) Boyle’s law B) Dalton’s law C) Henry’s law D) Winston’s law 28) A diving injury commonly called “the squeeze” occurs during which phase of diving? A) Descent B) Ascent C) On the surface D) On the bottom 29) Decompression sickness commonly occurs in divers who are diving below what level? A) 44 feet B) 33 feet C) 22 feet D) 11 feet 30) Which of the following is an essential factor to consider when assessing a patient suspected of having a diving emergency? A) Type of breathing apparatus utilized B) Depth of the dive C) Aircraft travel following a dive D) All of the above

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