Question

multiple choice question
what effect does dehydration have on blood viscosity?

it has no effect on blood viscosity.
it decreases blood viscosity.
it increases blood viscosity.

Explanation:

Dehydration reduces the volume of plasma (the liquid part of blood). Since blood viscosity is related to the proportion of cells and other components relative to the liquid, with less liquid (plasma) due to dehydration, the blood becomes thicker, increasing its viscosity. So the correct option is the one stating it increases blood viscosity.

Answer:

It increases blood viscosity.