RESUMEN
Appropriate donor selection in an important step in ensuring safe supply of blood and blood products. In this study deferral patterns of voluntary non-renumerated blood donors were determined at the North-Eastern Zonal Centre of the National Blood Transfusion service. The study was conducted between April 2007 and April 2009; and it involved the administration of a structured questionnaire. A total of 4032 voluntary blood donors were recruited; seven hundred and thirteen (17.7) were temporarily deferred. The commonest reasons for deferral were low haemoglobin; self-deferral; high blood pressure; low weight and high risk behaviour. Other reasons are use of certain medications; low blood pressure and failed venopuncture. Gender analysis showed that more females were deferred for low haemoglobin and more males were self-deferred. Following donor recall; 146 of the 173 donors temporarily deferred came back to donate. These consisted of 113 deferral due to low haemoglobin; 30 self-deferred and 3 induced in risky behaviour. Effective education or counseling; the old tradition of giving haematinics and good dietary advice to those with low haemaglobin values; improved the safety and availability of blood and blood products. Donors who are self-deferred and those involved in high risk bahviour should never be persuaded to donate blood. There is also the need for a review of operational guidelines with regards the uniform acceptable cut-off point of 12.5g/dl haemoglobin value for males and females