Which PCV interpretation is associated with dehydration?

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Multiple Choice

Which PCV interpretation is associated with dehydration?

Explanation:
The main idea is that dehydration causes hemoconcentration. PCV (packed cell volume) is the percentage of blood that's made up of red blood cells. When fluid in the bloodstream is lost or reduced, plasma volume drops while the number of red cells stays the same, so the red cells occupy a larger proportion of the blood. That raises the PCV. So, dehydration typically produces an increased PCV because of the reduced plasma volume, not a decreased or normal PCV. A decreased PCV would suggest blood loss or anemia, a normal PCV suggests no change in plasma volume, and a variable PCV would imply inconsistent factors at play.

The main idea is that dehydration causes hemoconcentration. PCV (packed cell volume) is the percentage of blood that's made up of red blood cells. When fluid in the bloodstream is lost or reduced, plasma volume drops while the number of red cells stays the same, so the red cells occupy a larger proportion of the blood. That raises the PCV.

So, dehydration typically produces an increased PCV because of the reduced plasma volume, not a decreased or normal PCV. A decreased PCV would suggest blood loss or anemia, a normal PCV suggests no change in plasma volume, and a variable PCV would imply inconsistent factors at play.

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