Assertion: transfusion reaction | /r/HasProperty | difficult to differentiate
Facets:
value: often
type: TEMPORAL
Source sentences:
text: While transfusion reactions are a relatively rare event (0.24% of blood product administrations in 2011), they can be life-threatening and are often difficult to differentiate in the acute setting.1 Diagnosis of an adverse reaction will be made clinically based upon vital signs and physical exam.