Does reliance on prothrombin time ratios cause significant errors in anticoagulation therapy?
Warfarin therapy in the United States is managed inappropriately because most laboratories do not report INRs and the variability in thromboplastin sensitivity produces misleading prothrombin time ratio results. Additionally, recent research may require reexamination if INR or ISI data were not provided.
Inpatients with myocardial infarction waited longer for coronary angiography and percutaneous coronary intervention at a hospital without invasive facility than similar patients at the regional referral hospital with on-site invasive facility.