Acute blood loss anemia after COVID-19 nasopharyngeal sampling.

Long-term care residents with novel coronavirus disease 2019 (COVID-19) experience high mortality rates and require frequent screening. Most resident testing occurs via nasopharyngeal swab that potentially causes epistaxis with rates of 5% to 8% in healthy populations. It is estimated that 48% of long-term care residents receive oral anticoagulation that increases risk of bleeding.