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It is possible
to donate only a portion of blood using a technique called
apheresis. Blood is drawn into an apheresis machine which separates
the blood into different portions by centrifugation. The selected
portion of blood, such as the platelets, can be recovered, while
the rest of the blood is returned to the donor. Platelets are vital
to the survival of bone marrow transplant patients, cancer patients
and those with aplastic anemia and other immune compromised patients.
This specialty blood product has a shelf life of only five days,
compared to the 42-day shelf life of red blood cells. The shorter
shelf life means that donors often give their time and lifesaving
contribution on very short notice to meet special patient needs.
Plasma can also
be collected during the apheresis procedure and is used for patients
in surgery, in trauma, organ transplants and in the treatment of
diseases.
Each year, more
than 9,000 apheresis donations are needed to meet the needs of hospitals
in the Mid-Atlantic Region.
What to Expect
during an Apheresis/Platelet Donation
The apheresis
donation is an automated blood donation process that takes approximately
two hours. During that time one unit (commonly referred to as "one
dose") of platelets is donated.
There are four
steps in the apheresis blood donation process:
1. Confidential
Medical History - To begin, donors complete a confidential
form, including name, address and general health information.
A series of health-related questions are included, and at this
point, certain medications, health problems or conditions may
disqualify you from donating blood. For example: if you are pregnant,
or have a fever when you come to donate, or having angina, you
cannot donate blood. Prior to donating., questions concerning
travel are also included. Answers to those questions help determine
if there are any reasons that might disqualify you from donating,
such as travel to particular countries.
2. Mini-physical
- After successfully completing the medical history, a mini-physical
is performed by a qualified staff person. Temperature, pulse rate
and blood pressure are checked, and a drop of blood taken from
your finger will determine the iron level in your blood.
3. Platelet
Donation - Blood is drawn through a needle into a sterile,
disposable bag, which is connected to a computerized, apheresis
machine. The apheresis machine separates the blood components
and collects the platelets. Remaining blood components are given
back to the donor along with replacement fluids. The donor's blood
stays in the sterile, plastic kit and never comes into contact
with the machine.
4. Beverages
and Snacks - Finally, you can relax while you enjoy refreshments.
This will help your body adjust to the slight decrease in fluid
volume. Your body replaces that fluid within 24 hours. You then
leave, knowing that you have just helped to save a life by donating
platelets!
Fast Facts
about Apheresis Donations
It
takes about two hours to separate one unit of platelets. The collection
bag and tubes are sterile and used for only one donation.
Individuals
can donate frequently because their platelets are rapidly replaced,
usually within one day.
Platelets
only last for five days and are usually transfused within three
days.
Bone
marrow transplant, cancer, and leukemia patients benefit from
single-donor platelets, which greatly reduce the chances of rejection
from the patients' bodies.
Apheresis
donations can be made every 4 days, or up to 24 times a year.
Single-donor
platelets also reduce the risk of transmitting a cold or influenza,
which can kill patients undergoing radiation or chemotherapy.
To find out more about platelet donations, call Ben Hubbard at
757.623.4877 or to schedule your platelet donation, call
757.623.4880.
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