नेपाल रेडक्रस रक्तसञ्चार सेवाको मापदण्ड अनुसार ९०/१२० दिनको रक्तदान अन्तर, आगामी मिति तथा रक्त समूह अनुकूलता जाँच।
Under Nepal Red Cross Society guidelines, healthy male donors can safely donate blood every 3 months (90 days), while female donors are recommended to wait at least 4 months (120 days) between whole blood donations.