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Table. 2.

Table. 2.

Effect of polyethylene glycol (PEG) precipitation on protein and lipids in clinical samples

Tests (N=4) Before PEG Mean (min∼max) After PEG Mean (min∼max) Mean %PPA
Total protein (g/dL) 6.6 (6.2∼7.0) 5.4 (5.2∼5.6) 18.0
Albumin (g/dL) 4.3 (4.2∼4.4) 4.3 (4.2∼4.4) 0
IgG (mg/dL) 1,367.6 (1,058∼1,408) 152.8 (136∼172) 88.7
IgA (mg/dL) 196.6 (128∼230) 124.4 (84∼146) 36.3
IgM (mg/dL) 112.8 (72∼226) 6 (6∼8) 93.7
Cholesterol (mg/dL) 160 (146∼184) 63 (58∼66) 60.2
Triglyceride (mg/dL) 66 (32∼110) 7.5 (4∼10) 88.1

Abbreviations: %PPA, %polyethylene glycol precipitable activity (=100×[(activitysaline−activityPEG)/activitysaline]; IgG, immunoglobulin G.

Korean J Clin Lab Sci 2021;53:188-92 https://doi.org/10.15324/kjcls.2021.53.2.188
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