Lipemia Interferences in Biochemical Tests, Investigating the Efficacy of Different Removal Methods in comparison with Ultracentrifugation as the Gold Standard
Table 2
Comparison of the results of native serum, serum blank, and diluted serum with ultracentrifuged serum.
Parameter
Mild lipemia (TG: 400–700 mg/dl)
Allowable bias (%)
Native serum (%)
Serum blank (%)
Diluted serum (%)
ALT
+1
11.48
Albumin
+1
1.43
ALP
0
6.72
Amylase
+7
7.4
AST
0
6.54
Bilirubin (total)
+6
8.95
Calcium
+14
+19
+26
0.82
Chloride
+17
+2
+21
0.5
CPK
−9
11.5
Creatinine
0
3.96
GGT
−2
11.6
Glucose
+7
+1
+26
2.34
Iron
+23
+13
+48
8.8
LDH
+4
4.3
Lipase
−5
11.31
Magnesium
+80
+80
+100
1.8
Phosphorus
+54
+54
+69
3.38
Total protein
+6
−18
+15
1.36
TIBC
+2
+3
+24
1.3
Urea
−8
−10
−21
5.57
Uric acid
0
4.87
Difference with ultracentrifuged serum, calculated as bias.