Question 1

What is blood viscosity?

Accepted Answer

Blood is about 3-4 times more viscous than water. Increases with hematocrit (red blood cell count).

Question 2

Why does blood viscosity matter?

Accepted Answer

High viscosity increases heart workload and clot risk. Low may indicate anemia. Affects circulation.

Question 3

What's the difference between dynamic and kinematic viscosity?

Accepted Answer

Dynamic viscosity (Pa·s, cP) measures flow resistance. Kinematic viscosity (m²/s, cSt) is dynamic viscosity divided by density, used in flow calculations.

Question 4

How does temperature affect viscosity?

Accepted Answer

Liquids generally become less viscous (thinner) when heated. Motor oil ratings (like 10W-40) indicate viscosity at cold (W) and hot operating temperatures.

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