Drucker Diagnostics Paralens Advance User Manual
Page 61
Table A-2-1
WITHIN-RUN PRECISION, QBC AUTOREAD PLUS SYSTEM
9
QBC VENOUS BLOOD TUBES
N = 10
per sample
HCT
HB
MCHC
PLT
WBC
#GRANS
%GRANS
#L/M
%L/M
SAMPLE 1
MEAN
47.6
15.9
33.5
155
7.1
4.6
65
2.5
35
% CV
1.87
0.74
2.17
8.91
3.16
2.71
2.02
5.86
3.78
SAMPLE 2
MEAN
23.1
7.4
31.8
288
6.7
4.9
73
1.8
27
% CV
1.44
0.66
1.22
3.27
2.33
3.07
1.41
3.69
3.85
SAMPLE 3
MEAN
31.9
10.4
32.5
550
11.2
7.9
71
3.3
29
% CV
1.5
1.27
1.29
3.59
5.41
7.3
2.86
6.49
6.96
SAMPLE 4
MEAN
52.3
16.3
31.1
745
16.1
10.6
66
5.6
34
% CV
1.4
1.35
0.96
4.68
6.42
5.86
1.43
8.09
2.77
SAMPLE 5
MEAN
41.6
13.6
32.8
91
5.3
3.6
68
1.7
32
% CV
1.73
1.45
0.8
5.34
6.72
6.2
1.85
9.02
4
QBC CAPILLARY BLOOD TUBES
N = 10
per sample
HCT
HB
MCHC
PLT
WBC
#GRANS
%GRANS
#L/M
%L/M
SAMPLE 1
MEAN
49.1
15.3
31.2
144
8.4
5.9
70
2.5
30
% CV
1.1
0.9
0.9
13.1
6.7
10.1
4.3
7.4
10.2
SAMPLE 2
MEAN
31.9
9.7
30.3
522
11.6
8.1
70
3.5
30
% CV
2.0
1.1
1.7
3.7
4.5
4.1
1.1
6.1
2.6
SAMPLE 3
MEAN
54.9
16.4
29.9
582
15.6
10.3
66
5.4
34
% CV
0.9
1.2
1.0
6.6
2.8
2.9
2.7
7.0
5.2
SAMPLE 4
MEAN
42.8
12.9
30.2
88
5.7
3.8
66
2
34
% CV
0.8
0.7
0.6
9.9
5.6
5.0
2.7
9.4
5.3
SAMPLE 5
MEAN
40.8
12.5
30.7
197
5.9
3.9
67
2
33
% CV
1.9
1.5
1.1
8.3
7.5
9.0
1.7
4.2
3.5
A-2.4
SPECIFIC PERFORMANCE
CHARACTERISTICS
A-2.4.1 Precision
Data on within-run reproducibility of the QBC
Autoread Plus System from five blood specimens with
QBC venous tubes and five blood specimens with
QBC capillary tubes are shown in Table A-2-1. The
means and % C.V.’s below are based on replicate
tests of 10 tubes per sample; e.g., for Sample 1,
n=10, etc.
A-2-3