what is the criteria for donating bone marrow?
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Who is eligible to become a potential blood stem cell donor? Anyone between the ages of 18-55 and in general good health can become a potential blood stem cell donor. Pre-registration is possible from the age of 17.
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You are eligible to donate blood if you are in good health, weigh at least 110 pounds and are 17 years or older.
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Most of your red blood cells are made in your bone marrow. This means that if you receive a bone marrow transplant from someone with a different blood type to you, your blood type will eventually change to the donor's type.
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Bone marrow donation is a surgical, usually outpatient procedure. You will receive anesthesia and feel no pain during the donation. Doctors use a needle to withdraw liquid marrow from the back of your pelvic bone via two small punctures.
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Keep in mind that all donors, regardless of age, must weigh at least 50 kg (110 lbs) to be considered eligible to donate blood and plasma. You are eligible to donate as long as you are feeling well at the time of your appointment. Remember to bring any prescription medication with you to your appointment.
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The bottom line There are two types of bone marrow. Red bone marrow is involved in production of blood cells, while yellow marrow is important for fat storage.
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Bone marrow is the tissue comprising the center of large bones. It is the place where new blood cells are produced. Bone marrow contains two types of stem cells: hemopoietic (which can produce blood cells) and stromal (which can produce fat, cartilage and bone).
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In general, as long as you are fit and healthy, weigh over 7 stone 12 lbs (50kg) and are aged between 17 and 66 (up to 70 if you have given blood before) you should be able to give blood. If you are over 70, you need to have given blood in the last two years to continue donating.
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Weight: You must weigh at least 110 pounds to be eligible for blood donation for your own safety. Blood volume is in proportion to body weight. Donors who weigh less than 110 pounds may not tolerate the removal of the required volume of blood as well as those who weigh more than 110 pounds.
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Siblings are much more likely to be matched than parents but only about 30 per cent of people needing a transplant will have a compatibly matched sibling. A person requires a bone marrow transplant when their blood is not healthy enough to support them or to fight an underlying disease.
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A stem cell or bone marrow transplant? The main difference between a stem cell and bone marrow transplant is whether stem cells are collected from the bloodstream or bone marrow. A stem cell transplant uses stem cells from your bloodstream, or a donor's bloodstream.
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The bone marrow aspiration is usually done first. The doctor makes a small incision, then inserts a hollow needle through the bone and into the bone marrow. Using a syringe attached to the needle, the doctor withdraws a sample of the liquid portion of the bone marrow. You may feel a brief sharp pain or stinging.
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Bone Marrow About 1 in every 100,000 cells in the marrow is a long-term, blood-forming stem cell; other cells present include stromal cells, stromal stem cells, blood progenitor cells, and mature and maturing white and red blood cells.
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You have to be at least 17 years old and 110 pounds to donate blood – but if you are between 17 and 23, the weight restriction does not apply, and eligibility depends on both weight and height.
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['In good physical and mental health.', 'At least 18 years old.', 'Be willing to donate: No one should feel that they MUST donate.', 'Be well informed: A good donor candidate has a solid grasp of the risks, benefits, and potential outcomes, both good and bad, for both the donor and recipient.', 'Have a good support system.']
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Your doctor uses a bone marrow test to examine the fluid and tissue in your marrow. The tests help determine whether cancer or another disease is affecting blood cells or marrow, as well as the extent of the disease. Some changes to blood cells can be detected in marrow samples before they can be seen in blood samples.
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['are fit and healthy.', 'weigh between 7 stone 12 lbs and 25 stone, or 50kg and 158kg.', 'are aged between 17 and 66 (or 70 if you have given blood before)', 'are over 70 and have given a full blood donation in the last two years.']