Uric Acid Tester

UASure Meter Specifications

  • Test Measured: Blood uric acid
  • Test Range: 3 - 20 mg/dL
  • Test Time: 30 seconds
  • Sample Size: 3 uL
  • Operating Temperature: 64° F - 100° F
  • Meter Storage: 39° F -131° F, below 85% humidity
  • Test Strip Storage: 39° F to 86° F
  • Memory: 10 test results
  • Calibration: Lot-specific external coding card, included with each package of test strips
  • Display Type: Large LCD screen
  • Battery Life (typical): 1000 Tests
  • Weight: 2.26 oz
  • Size: 3.9 x 2.3 x 0.8 in
Capillary Blood TestVenous Blood Test

Laboratory-Tested Accuracy

Accuracy describes how well the readings from a testing system (meter and test strips) agree with the readings from an accepted reference system (laboratory analyzer). Independent laboratories in Hamburg, Germany and Postfach, Switzerland have found the UASure meter to be highly accurate, and results from both laboratories compared well with results from the EPAC 6140 tester. Capillary and venous blood comparison studies between the UASure system and Hitachi/Roche system yield the following linear regression data:

Clinical Site Studies with Capillary Blood Samples
Number of Samples: 450
Range: 2.6 mg/dL to 14.5 mg/dL
Slope: 0.949
Intercept: 0.246 mg/dL
Correlation Coefficient: 0.969

 

Clinical Site Studies with Venous Blood Samples
Number of Samples: 480
Range: 2.6 mg/dL to 20.2 mg/dL
Slope: 0.953
Intercept: 0.125 mg/dL
Correlation Coefficient: 0.984

 

Laboratory-Tested Precision

Precision describes how consistent readings are from the same test system. Three lots of UASure test strips were used for within-run and between-run precision studies. Venous blood in heparin tubes was spiked to 4 concentrations. Blood uric acid readings were recorded for 10 days, resulting in 100 data points for each concentration. Data were averaged with three lots of test strips as shown in the following table:

Precision Study with Venous Blood Samples
Number of Samples: 100 100 100 100
Average (mg/dL): 5.7 9.0 11.9 15.0
SD (mg/dL): 0.26 0.37 0.45 0.44
CV (%): 4.5 4.2 3.8 2.9

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