Abbott i-STAT 1 System Manual page 423

Precision Data (mg/dL)
Aqueous Control
Level 1
Level 3
Method Comparison (mg/dL)
Beckman Coulter
LX20
n 35
Sxx 2.21
Syy 0.69
Slope 1.03
Int't -3.39
Sy.x 0.91
Xmin 45
Xmax 297
r 0.999
Cartridge Comparison
The performance characteristics of the sensors are equivalent in all cartridge configurations. System
difference analysis was performed on 34 patient samples using the i-STAT CHEM8+ and i-STAT CG8+
cartridges. In the 65–249 mg/dL range, the average difference was 0.80.
Factors Affecting Results*
Glucose values will decrease in whole blood samples over time. Venous blood glucose is as much as
7 mg/dL less than capillary blood glucose as a result of tissue utilization.
Interference studies were based on CLSI guideline EP7-A2.
CLSI guideline unless otherwise indicated.
When added to a plasma pool the following substances (at the concentrations indicated) were
found to interfere with the i-STAT glucose assay:
Substance
Acetaminophen
Acetylcysteine
Bromide
Bromide (therapeutic)
Hydroxyurea
Thiocyanate
Nithiodote (sodium thiosulfate)
The following substances are known not to significantly interfere with the i-STAT glucose assay at
the stated test concentrations:
Substance
Acetaldehyde
Acetaminophen (therapeutic)
Acetoacetate
Acetylcysteine (therapeutic)
Ascorbate
Rev. Date: 15-Jul-16
Mean SD
41.8 0.68
289 2.4
Bayer 860
40
4.71
0.96
0.99
-1.67
0.70
58
167
0.993
Test Concentration
(mmol/L)
1.32
10.2
37.5
2.5
0.92
6.9
16.7
Art: 714177-01R
%CV
1.6
0.8
Dade Dimension
RxL-Xpand
32
0.98
0.59
1.01
-0.85
1.57
48
257
0.998
5
Test concentrations used were as per the
6
Increased i-STAT Glucose results.
Decreased i-STAT Glucose results.
Decreased i-STAT Glucose results.
7,8,9
Increased i-STAT Glucose results.
Decreased i-STAT Glucose results.
Decreased i-STAT Glucose results.
14
Test Concentration
Interference
See Note 1 Below.
See Note 2 below.
Use another method.
See Note 3 below.
See Note 3 below.
Use another method.
See Note 7 below.
(mmol/L)
0.045
10
0.132
10
2.0
0.3
11,12
0.34
Glu - 3