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This is because the oxygen pulled into the lungs with each inspiration is less. The concentration remains the same (~21%), but the volume of air is less due to the elevation. To counter this, the body produces and circulates more red blood cells, so that a higher percentage of the oxygen is removed from the air and delivered to the body.

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Q: Why is packed cell volume higher in high altitudes?
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Related questions

What does the medical abbreviation PCV mean?

Packed Cell Volume


What is anther name of blood Hematocrit?

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What is difference between the lifestyle of people living on high altitudes and low altitudes?

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The surface area to volume ratio of a cell affects the rate of diffusion in that the higher the ratio, the faster the rate of diffusion. This is a directly proportional relationship.


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