Lab test for blood viscosity8/7/2023 In conclusion, eWBV is generally less sensitive but more specific for CVD. Calculated validities show that eWBV is ≥64% specific and ≤38% sensitive to cardiovascular phenomena. Reliability was affirmed by consistent significant differences in WBV levels between thrombocytopenia and thrombocytosis (p < 0.005). Statistical analysis adopted the conventional paired-contingency table method for sensitivities and specificities to assess validity of eWBV in CVD. This was a observational study that used archived data from haematology and biochemistry routine laboratory tests associated with cardiovascular phenomena. The objective of this study was to highlight the discourse on sensitivity, specificity and affordances (accessibility and affordability) of eWBV to re-evaluate the utilization of WBV in clinical practice, especially in low-mid income communities. With the development of extrapolated whole blood viscosity (eWBV) method from haematocrit and total serum protein level, what is yet to be established is the sensitivity and specificity of eWBV to address the limitations in clinical practice. However, the use of WBV in clinical practice is still limited by affordances, knowledge and attitude. Over the years, whole blood viscosity (WBV), an indicator of thickness and stickiness of blood has been a laboratory marker for blood stasis, and useful for monitoring several disorders including cardiovascular diseases (CVD).
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