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[Hemolysis interferences on frequently required stat analysis: a French multicentric study]
Carole Poupon1, Guillaume Lefèvre2, Sandrine Ngo-François3
1Laboratoire de biochimie, CH Gonesse, France.
Annales De Biologie Clinique
|December 5, 2015
Summary
Hemolysis significantly impacts many blood test results, with effects varying by analyzer and method. Laboratories must understand and report these interferences for accurate patient care.
Area of Science:
- Clinical Chemistry
- Laboratory Medicine
- Analytical Biochemistry
Context:
- Hemolysis, the rupture of red blood cells, is a common pre-analytical issue affecting laboratory test results.
- Accurate biochemical marker measurement is crucial for timely clinical decision-making, especially for stat tests.
Purpose:
- To evaluate the impact of varying hemolysis levels on 26 key stat biochemistry markers across multiple laboratory instruments and sites.
- To determine significant interferences based on analytic and biologic imprecision thresholds.
Summary:
- This study assessed hemolysis interference in 26 blood analytes using 13 different instruments across 17 labs.
- Samples were spiked with increasing concentrations of lysate (0-2.000 mg/dL) to quantify hemolysis effects.
- While some analytes like potassium and LDH showed expected changes, others exhibited heterogeneous interference dependent on the analyzer and methodology.
Impact:
- Highlights the critical need for laboratories to understand and measure hemolysis interference specific to their analytical platforms.
- Recommends clear communication of hemolysis interference through result comments to ensure accurate clinical interpretation and patient management.