3. A person is planning to leaving Miami (sea level) and traveling to Colorado to climb Mt. Wilson, at 14,500 ft, barometric pressure = 450 mm Hg. He takes acetazolamide, a carbonic anhydrase inhibitor that forces the kidneys to excrete bicarbonate before his trip. Which of the following would be the expected response before he makes the trip?
4. A 35-year-old man travels to Mars. His exercise equipment malfunctions so that he is subjected to prolonged weightlessness without appropriate exercise. Which of the following sets of changes best describe the physiologic changes that occur in this man?
5. A diver carries a 1000-L metal talk-box with an open bottom to a depth of 66 ft so that two divers can insert their heads and talk beneath the water. A person on the surface of the water pumps air into the box until the 1000-L box is completely filled with air. How much air from the surface is required to fill the box (in liters)?
6. A diver is breathing 10% O2 at a pressure of 2000 mm Hg. The diver’s body temperature is 37°C, and PCO2 = 32 mm Hg. What is the alveolar PO2?
7. Regarding a healthy recreational scuba diver at a depth of 66 ft in the Caribbean Sea, which of the following statements is true?
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