RT Journal Article SR Electronic T1 Anti-f in a 24- Year Old Male: A Case Study JF American Society for Clinical Laboratory Science JO Clin Lab Sci FD American Society of Chemistry and Laboratory Science SP 68 OP 71 DO 10.29074/ascls.23.2.68 VO 23 IS 2 A1 Eleanor K. Jator A1 Ethan Pedde YR 2010 UL http://hwmaint.clsjournal.ascls.org/content/23/2/68.abstract AB This is a case study of a 24-year old male, having total knee arthroplasty, who is found to have an anti-f antibody, and denies history of previous blood product injection or blood transfusion. The anti- f antibody is produced due to exposure to the f antigen, and is one of the Rh blood group system's compound antigens expressed when the c and e alleles are in the cis position on the Rh chromosome. Patients with anti-f requiring transfusion could safely be transfused with units of blood lacking both the c and e antigens and units lacking only the c antigen.