Transfusion Associated Dyspnea
The National Healthcare Safety Network (NHSN) hemovigilance protocol defines transfusion associated dyspnea (TAD) as acute respiratory distress occurring within 24 hours of cessation of transfusion that does not meet the definitions of an allergic reaction, transfusion associated circulatory overload (TACO) and transfusion related acute lung injury (TRALI).
