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Updated: Jun 10, 2026

Evaluation of a Point-of-Care Testing Analyzer for Measuring Peripheral Blood Leukocytes
Published on: March 22, 2022
[Preanalytical factors affecting clinical biochemical blood test results]
Dorte B Zilstorff1, Ida Stangerup1, Henriette P Sennels1
1Klinisk Biokemisk Afdeling, Københavns Universitetshospital - Bispebjerg og Frederiksberg Hospital.
None:
Blood test results influence up to 70% of all medical decisions, and their reliability depends on proper blood collection, sample storage, transportation, and accurate laboratory analysis. Most errors affecting blood test results (61-81%) occur in the pre-analytical phase. Common issues include in vitro hemolysis, underfilled or incorrect tubes, and tube-to-tube blood transfer. While laboratory quality control systems detect many errors, this review finds that prevention relies on correct blood collection procedures, education, and shared responsibility across healthcare sectors.
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