An interval of 16 weeks between donations of whole blood is reasonable. The minimum interval is 12 weeks. Normally, no more than three donations should be collected from a female donor and four from a male donor during any 12-month period.
A donor should not undergo a total of more than 26 plasma- and/or plateletpheresis procedures per 12-month period. There should normally be a minimum of 2 weeks between plasma- and/or plateletpheresis procedures.
After a whole blood donation, or the loss of an equivalent number of red cells during an apheresis procedure, a donor should not normally donate plasma or platelets for a period of 4 weeks. Further information is given in the ‘Frequency of Donation’ entry in the JPAC Donor Selection Guidelines1.
The interdonation interval for donation of double red cells by apheresis should not be less than 26 weeks (6 months) in the absence of iron supplementation. A shorter interval may be acceptable only if confirmation of iron-replete body stores can be accurately demonstrated and monitored.