Abstract
Hematocrit has been considered as an important marker of oxygen carrying capacity of the blood associated with whole blood viscosity to assess the mortality risk of both cardiovascular, cerebral, and kidney diseases. The present study developed a new on-line conductivity cell to measure the hematocrit of whole blood using a bipolar square-wave voltage signal at a frequency of 5 kHz. By applying such a voltage signal to a blood flowing in a range of 1.2-3.0 mL/min, the electrolyte effect of blood plasma, the conductive and capacitive effects of blood cells, and the sedimentation effect of erythrocytes on the conductivity of whole blood could be minimized for an accurate hematocrit measurement. The coefficient of correlation between the present method and conventional microcentrifuge method showed an excellent linear relationship. A new equation between the specific conductance and Hct of whole blood was obtained: C = 12.561 - 0.1527 Hct (P < 0.001).
| Original language | English |
|---|---|
| Pages (from-to) | 1836-1843 |
| Number of pages | 8 |
| Journal | International Journal of Heat and Mass Transfer |
| Volume | 55 |
| Issue number | 7-8 |
| DOIs | |
| State | Published - 2012.03 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Blood
- Conductance cell
- Conductivity
- Hematocrit
- Square-wave voltage signal
Quacquarelli Symonds(QS) Subject Topics
- Engineering - Mechanical
- Engineering - Petroleum
- Engineering - Chemical
- Physics & Astronomy
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