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| Q. |
Regarding the O2 dissociation curve: |
| A. | increased PCO2 has a direct effect on the curve, shifting it to the right |
| B. | 2,3-DPG levels rise as altitude |
| C. | the deoxy form of Hb is in the relaxed state |
| D. | CO moves the curve to the left as it has 100 times the affinity of O2 for Hb |
| E. | P50 is at a PO2 of 40mmHg |
| Answer» B. 2,3-DPG levels rise as altitude | |
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