An innovative method for determining lipemia interference in blood specimens.

Area of Science:

• Clinical Chemistry
• Biochemical Analysis
• Diagnostic Assays

Background:

• Lipemia interference in blood samples is a common issue in clinical diagnostics.
• Existing methods for detecting lipemia interference have limitations in confirming the cause.
• A novel method was evaluated to improve the assessment of lipemia interference.

Purpose of the Study:

• To assess a novel method for evaluating lipemia interference in clinical samples.
• To determine the reliability of a new technique for identifying interference caused by lipemia.
• To validate a method for assessing triglyceride interference in HDL cholesterol assays.

Main Methods:

• Matched lipemic and non-lipemic serum samples with similar HDL cholesterol were mixed.
• Samples were analyzed for HDL and triglycerides across five different concentration mixtures.
• Percent recovery of HDL was calculated for each mixture to assess interference.

Main Results:

• HDL recoveries ranged from 95.9% to 101.1% across 30 tested concentrations.
• Tested HDL concentrations were between 0.78 and 2.16 mmol/l.
• Triglycerides concentrations ranged from 1.06 to 9.78 mmol/l in the tested samples.

Conclusions:

• The novel matching method demonstrated no triglyceride interference with the HDL assay on the Hitachi S40 Clinical Analyzer up to 9.78 mmol/l.
• This simple matching method is effective for evaluating lipemia interference.
• The study confirms the accuracy of the novel method in assessing interference.