biostudies-literatureUnknown13Le Reste JY<h4>Background</h4>INR (International Normalized Ratio) is the biological reference test for the monitoring of vitamin K antagonist (VKA) therapy. Overdosage of VKAs causes about 17,000 hospitalizations and 5,000 deaths each year in France. To avoid these complications, monitoring and blood sampling conditions must be rigorous. In France, more than half of INRs are carried out at home. The aim was to determine blood-sampling conditions at home, transit time and the quality of the laboratory reagents used.<h4>Method</h4>Questionnaire-based, descriptive epidemiological cross-sectional prevalence study involving home care nurses, family physicians (FPs) and clinical laboratories.<h4>Setting</h4>Brittany, France, 2008. Study of the pre-analytical phase of INRs sampled at home and its influenceBMC cardiovascular disorders71https://www.ebi.ac.uk/biostudies/studies/S-EPMC3846900biostudies-literatureThere are considerable drawbacks to oral anticoagulant for monitoring patients at home which should lead family physicians to discuss alternative or enhanced solutions: a cross-sectional study.PMC3846900Chiron BLe Floch BBarrais MCadier SBarraine PLe Reste JYMansourati JLietard CNabbe PfalseThere are considerable drawbacks to oral anticoagulant for monitoring patients at home which should lead family physicians to discuss alternative or enhanced solutions: a cross-sectional study.<h4>Background</h4>INR (International Normalized Ratio) is the biological reference test for the monitoring of vitamin K antagonist (VKA) therapy. Overdosage of VKAs causes about 17,000 hospitalizations and 5,000 deaths each year in France. To avoid these complications, monitoring and blood sampling conditions must be rigorous. In France, more than half of INRs are carried out at home. The aim was to determine blood-sampling conditions at home, transit time and the quality of the laboratory reagents used.<h4>Method</h4>Questionnaire-based, descriptive epidemiological cross-sectional prevalence study involving home care nurses, family physicians (FPs) and clinical laboratories.<h4>Setting</h4>Brittany, France, 2008. Study of the pre-analytical phase of INRs sampled at home and its influence2013-01-01T00:00:00Z2013 Sep2025-04-04T12:27:09.811Z2019-03-27T03:09:34ZS-EPMC38469002402455610.1186/1471-2261-13-71