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Related Experiment Videos

[Structural viscosity of the blood].

H Krosch, J Schäbitz, K G Schneider

    Zeitschrift Fur Die Gesamte Innere Medizin Und Ihre Grenzgebiete
    |November 1, 1977
    PubMed
    Summary

    Blood viscosity decreases with increasing shear rate, showing structural-viscous behavior. High shear rates approach Newtonian flow, with viscosity correlating to hematocrit and fibrinogen levels.

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    [Pathobiochemical background of modified enzyme elimination in the urine].

    Zeitschrift fur medizinische Laboratoriumsdiagnostik·1983

    Area of Science:

    • Biophysics
    • Hematology

    Context:

    • Blood exhibits complex flow properties beyond simple viscosity.
    • Understanding blood rheology is crucial in various physiological and pathological conditions.

    Purpose:

    • To investigate the rheological behavior of blood across a range of shear rates.
    • To determine correlations between blood viscosity and key hematological parameters.

    Summary:

    • Measurements of blood viscosity were performed on 34 healthy individuals using a rotational viscosimeter at shear rates from 218.7 to 1,312 sec-1.
    • Blood demonstrated significant shear-thinning (structural-viscous behavior) at medium shear rates, with viscosity decreasing as shear rate increased.
    • At high shear rates, viscosity decrease was minimal, suggesting a trend towards Newtonian fluid behavior. Statistically significant correlations were found between viscosity and hematocrit, erythrocyte count, and plasma fibrinogen levels.

    Impact:

    • Provides insights into the non-Newtonian nature of blood flow.
    • Highlights the influence of hematological factors on blood rheology.
    • Contributes to a better understanding of blood's physical properties in healthy individuals.

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