Termination of Repeat Testing in Chemical Laboratories Based on Practice Guidelines: Examining the Effect of Rule-Based Repeat Testing in a Transplantation Center
Table 1
Chemical methods, wavelengths, and the CAP allowable bias.
Analytes
Methods
Wavelengths (nm)
CAP allowable bias (%)
Reading time (min)
Albumin
BCG
546
1.43
10
Alkaline phosphatase (ALP)
DGKC
405
6.72
9
Alanine aminotransferase (ALT)
UV/IFCC
340
11.48
9
Amylase
Enzymatic
405
7.4
10
Aspartate aminotransferase (AST)
UV/IFCC
340
6.54
9
Bilirubin total (BT)
Photometric-2,4 dichloroaniline
546
8.95
10
Bilirubin direct (BD)
Photometric-2,4 dichloroaniline
546
14.2
10
Blood urea nitrogen (BUN)
Urease
340
5.57
4
Calcium (Ca)
CPC
620
0.82
10
Chloride (Cl)
Colorimetric
450
0.5
10
Cholesterol total (CholT)
Enzymatic
505
4.1
10
Creatine kinase (CK)
IFCC
340
11.5
10
Creatinine (Cr)
JAFFE
500
3.96
8
Glucose
GOD-PAP
500
2.34
10
Gamma-glutamyl transferase (GGT)
Enzymatic
405
11.6
10
High-density lipoprotein-cholesterol (HDL-c)
Enzymatic
600
6.9
10
Iron
Photometric test using ferene
600
8.8
15
Lactate dehydrogenase (LDH)
DGKC
340
4.3
9
Low-density lipoprotein-cholesterol (LDL-c)
Enzymatic
600
5.46
10
Lipase
Enzymatic
580
11.31
9
Magnesium (Mg)
Colorimetric
546
1.8
5
Phosphorus (ph)
Phosphomolybdate
340
3.38
6
Protein total (ProtT)
Biuret
546
1.36
10
Total iron binding capacity (TIBC)
Direct
660
1.3
10
Triglyceride (TG)
Enzymatic
505
9.57
10
Uric acid
Enzymatic
555
4.87
6
BCG: bromocresol green; IFCC: International Federation of Clinical Chemistry; DGKC: German Society of Clinical Chemistry; CPC: cresolphthalein complexone; GOD-PAP: glucose oxidase/peroxidase.
