4. You\'ve determined that a rare blood cancer drastically alters leukocyte (WBC

Question

4. You've determined that a rare blood cancer drastically alters leukocyte (WBC) mechanical behavior. The viscoelastic behavior of these WBCs is appropriately modeled by a simple Newtonian liquid. You have a theory that these cells exhibit strain-rate sensitivity, which affects blood flow. You aspirate WBCs in a micropipette test using 2 different strain rats (10% and 50%). The data are shown below. Units are arbitrary and not needed to solve the problem. Provide an estimate of how much increasing strain rate from 10% to 50% affects cell viscosity. Your answer should be a fold-increase or fold-decrease from the 10% level. 50% 10% Lp

Explanation / Answer

Ans- at 10% the P°-Pp value is 2

At 50% the P°-Pp value is 25

It can be calculated as 25×10/50×2 = 2.5 fold

So the viscosity will increase by 2.5 fold.

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