| A： | Macao Blood Transfusion Service supplies blood and its derivatives to patients in need through the local hospitals free of charge. The blood and its products are mainly used for: (1) Emergency & accident and trauma: including wounds, burn and coma. (2) Major operation: such as cardiac, cardiovascular, stomach, intestinal and orthopaedic operations (3) Cancer treatment: such as leukaemia. (4) Others |
| A： | Any of your health problems obtained from the tests we performed, we will follow-up and provide treatment accordingly. And your personal information will be protected in accordance to the “Protection of Personal Information Law” (Lei no 8/2005) |
| A： | (1) Patients with HIV positive finding or AIDS (2) Promiscuous individuals (3) Sex workers (4) Homosexuals (5) Intravenous drug addicts |
| A： | Absolutely not. Blood donation is handled by well-trained professional nurses. All equipment used in connection in blood donation is sterilized and is disposed once used. They will never be used the second time. Therefore, a person can never become infected through blood donation. |
| A： | There is no scientific explanation for this. Some donors have the presumption that they need to eat a lot to replenish the nutrients lost after donating blood. This may result in over-eating which consequently leads to increase in body weight. In addition, the metabolism rate and energy consumption rate will decrease as a person grows older. If the individual does not reduce the amount of food intake, it is expected to have increase in weight. Thus, there is no relation between blood donation and weight gain. |
| A： | Donors may feel a little discomfort during venesection. Similar to ordinary injection, once the needle is fixed at a position, the donors will not feel painful anymore. As some donors who are scared of pain say, it's worth the pain if it can save the lives of others. |
| A： | The most possible reason is that donors misunderstand that they need to eat a lot to replenish the body after donating blood. Thus, it results in over-eating which consequently leads to increase in body weight. |
| A： | After donating blood, press the venepuncture site with your finger lightly for 5 minutes to stop bleeding. After taking a rest of 10-15 minutes, you can resume your normal activities. However, it is advised that you only have strenuous activities or carry heavy items after 24 hours. This is to avoid blood stagnation. |
| A： | 1. Do not have an empty stomach before donation. Otherwise, it can cause dizzy feelings. 2. Have sufficient drinks before blood donation; this is to avoid the blood donated being too concentrated. 3. Have a good sleep the night before. |
| A： | Blood donation can help patients with severe illness and those near the edge of death get their lives back. This kind of happiness cannot be described in words. Should you or your family members require blood transfusion one day, you will then truly understand and appreciate the meaning of blood donation. In addition, an authoritative study in the United States indicates that a regular blood donor has a lower chance of having coronary heart disease than ordinary people. |
| A： | The amount of blood collected by Macao Blood Transfusion Service is based on the body weight of the donor. In general, donors weigh from 45-50kg can donate 350ml blood; 50kg or above can donate 450ml blood. As a matter of fact, about half of the human blood is made up of water. Thus, among the 350ml of blood you donate, 180ml of which is actually water. For healthy people, it is easy for blood-making organs to produce sufficient blood to maintain their daily lives. The blood-making organs of ordinary people are producing blood every second to replace the dead blood cells. However, for people with diseases related to blood-making organs or patients who have lost a large amount of blood in a short period, the blood of others is the most important element in saving their lives. |
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Red cells, white cells and platelets are mainly made up of bone marrow in vertebra, ribs, pelvis, cranium and sternum. The main functions of the blood cells are to carry oxygen, resist infections and assist in blood coagulation.
Blood plasma is in pale yellow colour, mainly made up of water, protein and salt. Its main functions are to deliver blood cells, nutrition, enzyme and hormone.
The haemoglobin in red cells can combine with oxygen and deliver the oxygen to different parts of the body.。
White cells are the first line of defence against infections in the body. They can move to the attacked tissues through the blood to resist external pathogens.
Platelets are tiny blood cells. When blood vessels are injured, platelets can coagulate as a mass and plug the stoma of the injured blood vessels. They assist in the operation of the coagulation system in the body.
| A： |  Negative Blood – (Rh blood group system)
Rh blood group system is one of the 29 blood group systems and has 45 different types of antibodies. However, only 5 types namely D, C, c, E and e are clinically significant with antibody type D as the most significant one. Since RhD antibodies can only be found on red cell membrane of human bodies, red blood cells can be classified as RhD+ (positive) or RhD- (negative) based on whether there are any D antibodies on the red blood cells. |
In general, a RhD negative person can only receive negative blood. It is estimated that there are about 2000 RhD negative individuals in Macao. Therefore, RhD negative blood is a rare blood type in Macao.
Macao Blood Transfusion Service needs to store a certain amount of this special blood type daily so as to ensure sufficient supply. RhD negative individuals are urged to donate blood. This will not only help others but also help the donors themselves. They should donate blood to ensure the blood supply should they need it in the future.
The distribution of negative blood varies largely among different races. About 15% of Caucasians are with negative blood, whereas in Asia, only 3-5 in every 1000 persons are with negative blood.
The stock of negative blood is quite stable in Macao over the past years. However, as negative blood is more common among Caucasians, the number of donors with negative blood is decreasing with the gradual leaving of Portuguese.
Please register at our Blood Transfusion Center. We will input your information into our donor database and will contact you when there is a demand or emergency for your blood type.
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