Patients in NZ hospitals need about 3,000 blood donations every week
Plasma and Platelet donations can be made at the following Donor Centres:
Giving plasma or platelets is an automated process where instead of donating whole blood, the donor gives only a certain part or component, usually platelets or plasma. The donor's blood is collected, the red blood cells and plasma or platelets are separated and then the red blood cells are returned to the donor using a process called "apheresis".
Apheresis (pronounced ay-fur-ee-sis) is a special type of blood donation and comes from the Greek word meaning, "to take away" or "to separate". Donating plasma is a procedure called plasmapheresis, while donating platelets is called plateletpheresis.
The blood is taken from one arm and channelled through a sterile, disposable kit housed in the apheresis machine - which automatically removes the required components from the donor's blood using a centrifuge and returns the rest to the donor using the same needle.
All tubing, bags and needles used in the process are new, sterile and used only once. After use, they are destroyed.
This can vary for each donor but some donors may feel cold during their donation (blankets can be provided!), or feel a tingly sensation in their lips or hands. This is because as blood is drawn during an apheresis donation, a substance called citrate is added to the blood to prevent clotting while the blood is outside the body. Some of the citrate is returned to the donor and may cause tingling around the mouth or coldness during the donation. These are temporary conditions only, and the citrate is broken down very quickly in the bloodstream.
As your red cells are returned to you using the apheresis machine, you most likely won't feel as tired after giving these donations (although this varies for each individual).
Donating by apheresis provides large quantities of plasma and/or platelets, and because donors are not giving red blood cells they can donate more frequently, you can donate every two to three weeks (rather than every 3 months)
Plasmapheresis takes about 60 minutes on the donation bed, while plateletpheresis can take about 100 minutes.
These times are in addition to the usual process of filling out a Donor Questionnaire Form, Confidential Interview with a nurse and the 5-10 minutes to recover post-donation.
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