If you are taking acetaminophen containing drugs (Tylenol and other medicines containing acetaminophen,
blood concentrations >5 mg/dL) or Vitamin C (ascorbic acid, blood concentrations >4 mg/dL) at doses higher
than recommended, these may interfere with your glucose meter and cause you to get inaccurate results with
this system.
System Accuracy: The System was tested on 350 capillary blood samples, and this is the accuracy in the hands
of lay users.
Regression analysis between the meter and YSI reference
Finger
Palm
Forearm
Upper arm
Calf
Slope (comparison with YSI)
0.9838
0.9964
0.9809
0.9853
0.9856
Y-Intercept
(Comparison with YSI)
-1.0011
-2.2901
-0.6385
-0.7838
-0.5727
R
2
(Comparison with YSI)
0.9813
0.9829
0.9844
0.9812
0.985
System accuracy results for glucose concentrations < 75 mg/dL
Anatomical site
Within ± 5 mg/dL
Within ±10 mg/dL
Within ±15 mg/dL
Within ±20
mg/dL
Finger
31/55
(56.4%)
51/55
(91.1%)
55/55
(100%)
55/55
(100%)
Palm
32/56
(57.1%)
55/56
(98.2%)
56/56
(100%)
56/56
(100%)
Forearm
31/55
(56.3%)
54/55
(98.2%)
55/55
(100%)
55/55
(100%)
Upper Arm
33/55
(60%)
53/55
(96.4%)
55/55
(100%)
55/55
(100%)
Calf
29/53
(54.7%)
50/53
(94.3%)
53/53
(100%)
53/53
(100%)
Thigh
32/55
(58.2%)
53/55
(96.4%)
55/55
(100%)
55/55
(100%)
System ac
curacy results for glucose concentrations ≥ 75 mg/dL
Anatomical site
Within±5%
Within ±10%
Within ±15%
Within ±20%
Finger
124/295
(42%)
242/295
(82%)
292/295
(99%)
295/295
(100%)
Palm
122/294
(41.5%)
232/294
(78.9%)
286/294
(97.3%)
294/294
(100%)
Forearm
136/295
(46.1%)
235/295
(79.7%)
285/295
(96.6%)
295/295
(100%)
Upper Arm
134/295
(45.4%)
237/295
(80.3%)
287/295
(97.3%)
295/295
(100%)
Calf
122/297
(41.1%)
245/297
(82.5%)
288/297
(97%)
297/297
(100%)
Thigh
136/295
(46.1%)
246/295
(83.4%)
286/295
(96.3%)
295/295
(100%)
