Tim celebrated his dental school acceptance by completing the seven days trek to Machu Pichu (Day 7: Aguas Calientes elevation 2,430 m). Tim is in good physical condition. He runs 3-5 miles per day, weight trains, and plays midfield in the local soccer club. (Review pages 527-the top of 531 in Guyton and Hall).
20. Describe Tim’s normal O2 saturation curve and the curve at 2,430 m.
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21. Predict whether each of the following parameters would be increased, decreased, or unchanged on Aguas Calientes. Explain why each of the predicted changes would occur.
a. Breathing rate
b. Percent saturation of hemoglobin
c. PO2 at which hemoglobin is 50% saturated (PO50%)
d. Pulmonary artery pressure