The confidential unit exclusion and allogeneic blood donation: Results from supplementary questions to the donor center and viral markers surveys of the College of American Pathologists

Objective. - The confidential unit exclusion (CUE) is a mechanism for allogeneic blood donors to confidentially indicate whether they feel their blood is safe for transfusion to others. The purpose of this national survey was to determine the extent of use of the CUE procedure and its related policies. Design. - Supplementary questions related to the use of the CUE were asked of those 1994 DC-C, W1-C, and W2-C College of American Pathologists survey subscribers who collect allogeneic blood for transfusion. Setting. - National survey. Participants. - Blood collection facilities who collect allogeneic blood components. Main Outcome Measures. - Survey responses. Results. - There were a total of 2966 total participants in the 1994 DC-C, W1-C, and W2-C surveys. A potential total of 444 participants indicated that they collected allogeneic blood and were eligible to participate in the CUE survey. A variety of approaches are used concerning donor deferral, reinstatement, and follow-up in the use of the CUE. Documentation and donor counseling issues also show variation. Conclusions. - Different approaches and procedures have been developed by collection facilities to address issues related to the use of the CUE. More data on the efficacy and cost-effectiveness of the CUE are needed.