Cited by 47Clinical Laboratory Practices and Quality ControlBlood Coagulation and Thrombosis MechanismsBlood properties and coagulation

Effects of haemolysis, icterus and lipaemia on coagulation tests as performed on Stago STA‐Compact‐Max analyser

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Woolley, A., Golmard, J.‐L., Kitchen, S.·2016·International Journal of Laboratory Hematology

Abstract

INTRODUCTION: Haemolysis, icterus and lipaemia (HIL) may affect haemostasis test results. This may be influenced by the level of interfering substance and the reagents and end-point detection system used. METHODS: We assessed the influence of HIL on prothrombin time, activated partial thromboplastin time and fibrinogen assay using a viscosity-based detection analyser. RESULTS: Spontaneous haemolysis that occurred during sample collection and processing had no effect on PT with either a rabbit tissue factor extract or recombinant human tissue factor reagents. In contrast, addition of mechanically haemolysed cells impacted on PT for the highest haemoglobin concentration. For APTTs determined with STA®-Cephascreen® reagent, there was no significant difference between results in haemolysed and nonhaemolysed samples. For the other two reagents studied, APTTs were statistically significantly shorter in haemolysed samples compared with nonhaemolysed samples. This bias was clinically significant only for STA®-PTT Automate. For all three APTT reagents, the impact of haemolysis was sufficient to impact patient management decisions, and in some samples, the effects of lipaemia and icterus were not clinically significant. CONCLUSION: Overall, our results confirm that PT and fibrinogen were not clinically significantly affected by HIL. The APTTs of some haemolysed samples were falsely normal. Haemolysed samples for APTT determination should be rejected.

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  • Hemolysis, icterus, and lipemia mainly affect the APTT and can produce a falsely normal APTT in hemolyzed samples.

    “Hemolysis, icterus, and lipemia mainly affects the APTT, resulting in a falsely normal APTT in hemolyzed samples.[29][30][31]”

    From Guidance from the Scientific and Standardization Committee for lupus anticoagulant/antiphospholipid antibodies of the International Society on Thrombosis and Haemostasis (2020) · cites this paper as [29]

    The Abstract and Conclusion report that some haemolysed samples had falsely normal APTTs, while PT and fibrinogen were not clinically significantly affected by HIL. But the Discussion says icterus and lipaemia did not produce clinically relevant APTT bias with this analyser, so the claim overstates their effect on APTT. (LLM, conf=0.88)

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Research works printed but not linked: 1

  1. Clinical and Laboratory Standards institute (CLSI). Collection, Transport, and Process- ing of Blood specimen for Testing Plasma- Based Coagulation Assays and Molecular Hemostasis Assays: Approved Guideline - Fifth Edition. CLSI: document H21-A5.

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Authors
Woolley, A., Golmard, J. ‐., & Kitchen, S.
Affiliations
  • Sheffield Teaching Hospitals NHS Foundation Trust (GB)
  • Assistance Publique – Hôpitaux de Paris (FR)
Corresponding author
Kitchen, S.
Venue
International Journal of Laboratory Hematology
Publisher
Wiley
Published
2016-06-16
Volume
38
Issue
4
Pages
375-388
ISSN
  • 1751-5521 (ISSN-L)
  • 1751-553X
OpenAlex
W2437080488
Cited by
47
References
16
Citations by year
2026: 3 · 2025: 4 · 2024: 3 · 2023: 4 · 2022: 5 · 2021: 7 · 2020: 7 · 2019: 9 · 2018: 2 · 2017: 3
FWCI
3.75
Type
journal article
Language
en
Open access
Locations
  • International Journal of Laboratory Hematology (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
Diagnostica Stago
Topics
  • Health Sciences › Medicine › Physiology › Clinical Laboratory Practices and Quality Control
  • Health Sciences › Medicine › Hematology › Blood Coagulation and Thrombosis Mechanisms
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Blood properties and coagulation
Keywords
hemolysis, icterus, lipemia, coagulation test interference, prothrombin time, activated partial thromboplastin time, fibrinogen assay, sample rejection
MeSH terms
Animals, Blood Coagulation Tests, False Negative Reactions, Hemolysis, Humans, Hyperlipidemias, Indicators and Reagents, Jaundice, Rabbits

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