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Q: What do I need to do to donate blood?
A: Contact your local blood center and request an appointment
to donate.
Q: What are the requirements for donating blood?
A: The national guidelines for blood donation are that
a donor must be at least 17 years old, weigh over 110 pounds,
and be in general good health. You should feel well on the
day of your donation. If you feel symptoms of a cold or
flu, contact your blood center and ask to reschedule your
appointment for a few days later. There are many other factors
that can make a person ineligible to donate blood, but these
can vary by blood center. If you have questions, you should
speak with a blood center representative prior to your appointment
date. Some factors that make a person ineligible to donate
include taking certain medications, some medical conditions,
travel to particular countries, and tattoo and body piercing
(for a limited amount of time).
Q: What happens when I get to the blood center?
A: Upon check in at the blood center, you will need
to present identification and complete a form which asks
general questions about you, your health, and your lifestyle.
A blood center representative will then take you into a
private room, ask you a series of questions, and run a basic
health check on you. The basic health check may include
taking your blood pressure, your pulse, a blood sample for
iron levels, and your temperature. When this is complete,
you will be brought into the donor room to give a pint of
blood or a unit of blood components (red cells, platelets,
or plasma). To learn more about the blood donation process,
please see the "Blood
101" section of this site.
Q: How frequently can I donate blood?
A: Frequency of blood donations varies by the blood
component you are donating: "Pint" whole blood donors -
can donate every 56 days Double red cell donors - can donate
every 112 days Red cell/plasma donors - can donate every
56 days Plasma donors - can donate every 28 days (but more
frequently when donating at a commercial plasma center)
Platelet donors - can donate every 2-3 days up to a total
of 24 times a year
Q: What organizations collect blood, and where does
collected blood go?
A: The principle organizations that collect blood include
nationwide blood bank systems, blood banks within some hospitals
(which support their own patients' needs), and community
blood banks (which support the needs of patients in their
community's hospitals). Typically, blood collected in a
geographic region is used within that region. However, some
blood banks which have a surplus of blood export their blood
to regions suffering serious shortages.
Q: What are the components of blood and how are they
used?
A: There are four components in blood: red blood cells,
white blood cells, platelets and plasma. Red blood cells
supply oxygen to various parts of the body. White blood
cells fight against disease or infections. Plasma carries
nutrients, clotting factors and enzymes. Platelets help
clot the blood to prevent excessive bleeding. Today, doctors
transfuse individual blood components based upon the patient's
needs. Major categories of patient needs include: cancer
therapy, organ transplants, accident victims and people
undergoing elective surgical procedures. Whereas cancer
patients, for example, may primarily need platelets, the
vast majority of patients need red blood cells.
Q: What is an automated blood donation (also known as
"apheresis")?
A: Automated blood donation uses technology developed
by Haemonetics Corporation (NYSE: HAE). During an automated
procedure, a qualified volunteer blood donor donates specific
blood components. Blood is collected via a single-use disposable
kit and separated while a person is donating. It is spun
until the blood components separated by weight-denser blood
products, such as red blood cells, are pushed to the outside
of the disposable centrifuge bowl and lighter products,
such as plasma, remain near the middle. This separation
process is more accurate than traditional whole blood collection,
for which operators must manually separate blood components.
It also allows for the collection of one or two complete
units of blood components immediately ready for transfusion
to a patient.
Q: What is the MCS®+ system?
A: In support of automated blood donation, Haemonetics
manufacturers a medical device called the MCS+ mobile collection
system. There are two types of MCS+ devices: 1. The MCS+
8150 uses automated technology to collect two units of red
blood cells (double red cells) from qualified donors. By
collecting two units of red cells, blood banks can simultaneously
double the donation amount and improve red blood cell availability
to the community. In addition to collecting double red cells,
the MCS+ 8150 can also collect a single unit of red cells
and a "jumbo unit" of plasma simultaneously. Also, a filter
is now available with this MCS+ system. This filter removes
the white blood cells from the blood as part of the collection
procedure. White blood cells can be harmful if transfused
to patients. 2. The MCS+ 9000 can collect either one unit
or two units of platelets. This collection amount is significant,
since one unit of apheresis platelets is equivalent to the
number of platelets derived from six to 10 whole blood donors.
This device also has a protocol which filters out white
blood cells from the unit of platelets.
Q: What is the PCS®2 system?
A: The PCS2 system is an automated blood donation system
manufactured by Haemonetics that collects one to two units
of plasma from a donor.
Q: Why are some blood donors paid while others are not?
A: In the U.S., blood and blood components used for
transfusion to patients must be donated by volunteer, unpaid
donors. This is one way in which blood collectors can assure
a safe blood supply. Paid blood donors can only donate plasma,
and this plasma is then used by pharmaceutical companies
to make drugs. This plasma goes through a great deal of
processing to insure its safety. Blood for transfusion does
not go through the same processing.
Q: How does paid plasma donation differ from volunteer
blood donation?
A: A paid plasma donation is the same as any other automated
donation process. Blood is drawn from the donor, that blood
is separated during the donation process in a machine that
sits next to the donor. The plasma is centrifuged from the
blood and directed into a plasma collection bottle. The
remaining portion of the blood is returned to the donor.
This processing takes place within a closed circuit, disposable
set, meaning that the donor's blood is never exposed to
air, contamination, or any other person's blood. It is a
safe process that has been in use for many years. Paid plasma
donors can donate much more frequently than volunteer blood
donors. Plasma donors should contact their local donation
center for specific donation guidelines.
Q: Who can donate using the MCS+ system?
A: To qualify to donate using the MCS+ system, donors
must meet the same guidelines as they would to donate a
pint of whole blood: be at least 17 years old, weigh more
than 110 pounds, and be in good health. For donors who would
like to donate two units of red blood cells using the MCS+
technology, male donors must be a minimum 5'1" tall and
weigh 130 pounds and female donors must be at least 5' 5"
tall and weigh 150 pounds. To ensure donors are in optimal
condition to donate, they must wait about four months between
two-unit red blood cell donations. If potential donors do
not meet the double red blood cell protocol height and weight
requirements, they are still eligible to use automated technology
to donate one unit red blood cells/one unit plasma or to
donate platelets.
Q: How long has the MCS+ system been available for
use in the US?
A: The MCS+ system has been available for use in the
US since 1992, when Haemonetics received clearance from
the FDA to market it for collection of platelets. Since
that time the FDA has cleared the system for a number of
other uses. In 1995, the FDA cleared the device for the
collection of one unit of red cells and one unit of plasma,
and in 1996, for the collection of two units of red blood
cells from patients donating blood for their own surgeries.
In 1997, Haemonetics received FDA clearance to use the MCS+
system to collect two units of red blood cells from volunteer
blood donors, and in 2000, that same MCS+ system was cleared
for the collection of two units of leukoreduced red cells.
Q: Why collect blood?
A: It is estimated that in the United States, every
three seconds a patient needs blood for procedures ranging
from emergencies to elective surgeries to cancer treatments.
Sometimes the blood can be pre-donated by the patient (autologous
donation). However, most of the blood used during transfusions
comes from healthy volunteer blood donors (allogeneic donation).
Unfortunately, the need for blood often outweighs the available
supply.
Q: What are the ramifications of blood shortages?
A: Blood shortages can cause: 1. Treatment delays for
patients. With a limited blood supply, the least critical
surgeries are at risk of being canceled, since blood must
be allocated to acute needs first. 2. Economic strain on
blood collection centers. To help ensure an adequate blood
supply, blood banks that cannot meet the demand in their
region are compelled to import blood from other regions
that have a surplus. Ironically, the funds used to purchase
blood are often dollars reallocated from donor recruitment
leading to a classic "catch-22", since a broader donor pool
would decrease or eliminate the need to import blood. Importing
blood is costly and strains a blood bank's limited budget.
This is a serious problem because blood banks are typically
community-based, not-for-profit organizations with limited
resources.
Q: What is the status of blood supply in the United
States?
A: The blood supply in the US is consistently low. The
demand for blood increases each year faster than the rate
at which people are donating blood. Fewer than five percent
of the eligible donors in the US give whole blood. As a
result of this limited volunteer donor base, the supply
of red blood cells (the most used blood component) barely
serves the growing demand. To put this need into context,
currently more than 4,000 gallons of red blood cells are
used in the US every day - and the amount is increasing.
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