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Journal Article > Study
Shermock KM, Streiff MB, Pinto BL, Kraus P, Pronovost PJ. J Thromb Haemost. 2011;9:1769-1775.
In this study, investigators compared international normalized ratio measurements (INR, a measurement of blood clotting ability) obtained simultaneously on a point-of-care analyzer and a standard blood draw. Although the concordance between the two measurements met traditional quality assurance standards, the point-of-care analyzer results were systematically biased toward normal measurements, putting patients at risk of preventable adverse events due to failure to adjust anticoagulant medications appropriately.
Cases & Commentaries
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Margaret Fang, MD, MPH; Raman Khanna, MD, MAS; July 2011
Following hospitalization for community-acquired pneumonia, an elderly man with a history of dementia, falls, and atrial fibrillation is discharged on antibiotics but no changes to his anticoagulation medication. One week later, the patient’s INR was dangerously high.