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The Method of Lipemia Clearance Should be Based on the Characteristics and the Method of Testing in the Emergency
Background:
This study aimed to compare the lipemia removal efficiency of highspeed centrifugation, lipid scavengers, and dilution for biochemical analytes.
Methods:
We collected 30 cases of lipemic plasma in an emergency laboratory and divided them into 4 aliquots. Lipemia was removed by highspeed centrifugation, lipid scavenger, dilution, and ultracentrifugation, then analytes were measured by an AU5800 analyzer. Taking ultracentrifugation as reference, the efficiencies of the other three methods were evaluated based on the deviation.
Results:
When highspeed centrifugation was used for lipemia removal, DBIL (18.62%), and Magnesium (6.09%) could not satisfy the criterion. When lipid scavengers were applied to remove lipemia, CRP (-86.70%), TP (-8.29%), CKMB (-44.85%), DBIL (37.96%), Glu (4.20%) and phosphate (14.32%) were not suggested as lipid scavengers. For dilution, nearly half of the analytes could satisfy the criterion, including AMY (2.41%), CRP (5.54%), ALT (2.85%), GGTL (-1.73%), ALP (-0.04%), Glu (-0.84%), LDH (0.06%), CK (0.68%), BUN (3.80%), CREA (-1.54%), UA (5.42%), and magnesium (0.43%).
Conclusions:
Neither of the methods for lipid removal could satisfy all emergency department tests for lipid removal. This finding suggests that removing lipemia in the clinical laboratory should be based on the characteristics and the method of testing.
