When Messner and Habeler climbed Mount Everest without supplemental oxygen, the scientists had to reevaluate their calculations that VO2 max at the top of Everest.They found that the barometric pressure was higher than expected at the top of Everest. oxygen percentage was higher than expected at the top of Everest. air temperature was was higher than expected at the top of Everest. hemoglobin levels at that altitude was higher than expected at the top of Everest.

Question 28After hiking to the top of Mt. Everest, a patient reports having a more difficult time breathing than at sea level. What might be a possible explanation? A.The gas constant R is lower at the lower atmospheric pressures found at higher altitudes.B.The gas constant R is higher at the lower atmospheric pressures found at higher altitudes.C.The atmospheric pressure is lower at higher altitudes.D.The volume of the lungs is lower at higher altitudes.

On ascent to high altitude, there is a marked drop in Hb-O2 saturation, this drop can be explained by: (Select all that are correct. There may be one or more correct options)Group of answer choicesFall in temperature in the atmosphere creates a right ward shift of the Hb-O2 curveDecrease barometric air pressure means the air is less dense and thus the number of O2 molecules inspired with each breath is lessDecrease barometric air pressure decrease O2 partial pressure in the surrounding airPercentage composition of oxygen decreases with altitude, thus less O2 is inspired with each breath

The summit of Mount Everest stands at 8,849 m above sea level. What is the approximate barometric pressure of normal air that a climber would feel at the summit of Mount Everest? (Note: Atmospheric pressure at sea level is 1 atm = 760 mmHg.)A.21 mmHgB.42 mmHgC.200 mmHgD.500 mmHg

At high altitudes, hypoxia can occur because the percentage of O2 in atmospheric air is decreasedQuestion 16AnswerTrueFalse

On ascent to the summit of Mt Everest, the expedition team obtained samples of blood and alveolar gas at different altitudes. What would you expect to find in the analysis compared to sea level?PaCO2 is expected to be  at sea levelpH is expected to be at sea levelPaO2 is expected to be at sea levelLactate is expected to be at sea level