Portable electrochemical blood uric acid meter

Area of Science:

• Biomedical Engineering
• Clinical Chemistry
• Medical Devices

Background:

• Hyperuricemia, a condition of elevated uric acid levels, is associated with gout and other health issues.
• Accurate and rapid monitoring of uric acid is crucial for managing hyperuricemic patients.
• Existing methods for uric acid measurement can be time-consuming or require laboratory facilities.

Purpose of the Study:

• To evaluate the performance of a new portable electrochemical uric acid meter, the UASure.
• To compare the accuracy and reliability of the UASure with a standard laboratory method (Hitachi 7600).
• To assess the suitability of the UASure for point-of-care uric acid testing.

Main Methods:

• The UASure meter was used to measure uric acid in capillary and venous blood samples from 146 volunteers.
• Uric acid concentrations were simultaneously measured using the standard Hitachi 7600 modular system.
• Intra-assay coefficients of variation and correlation coefficients (r) were calculated to assess precision and agreement.

Main Results:

• The UASure demonstrated low intra-assay coefficients of variation (3.08%–5.77%) across different uric acid levels.
• UASure measurements showed strong correlation with the Hitachi 7600 method (r = 0.87 for venous, r = 0.78 for capillary samples).
• The intraclass correlation for venous samples (rI = 0.84) indicated interchangeability with the standard method.

Conclusions:

• The portable UASure meter provides accurate and reliable uric acid measurements.
• UASure, particularly with venous blood samples, is interchangeable with the standard Hitachi 7600 method.
• The UASure is a promising device for rapid, point-of-care monitoring of uric acid concentrations.